interface JsonMessage {
  nonce: string,
  block: {
    header: {
      version: {
        block: number
      },
      chain_id: string,
      height: number,
      time: string,
      last_block_id: {
        hash: string,
        part_set_header: {
          total: number,
          hash: string
        }
      },
      last_commit_hash: string,
      data_hash: string,
      validators_hash: string,
      next_validators_hash: string,
      consensus_hash: string,
      app_hash: string,
      last_results_hash: string,
      evidence_hash: string,
      proposer_address: string
    },
    data: {
      txs: string[]
    },
    evidence: {
      evidence: []
    },
    last_commit: {
      height: number,
      block_id: {
        hash: string,
        part_set_header: {
          total: number,
          hash: string
        }
      },
      signatures: Array<
        {
          block_id_flag: 2,
          validator_address: string,
          timestamp: string,
          signature: string
        }
      >
    }
  }
}