{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "157020",
    "entityType": "User",
    "nonce": "0x840e49d88948976a65c23b58477110ca2717fb96c7c4dd91135aaf3c43ddeae5",
    "signature": "0xda2552366b6852054803d7128f30bf17b5144c80fd8572531f0255ce97c49c393e0b4bd7de951a3e7e092e76e2b9dc59954d4c00d09407c6bfdc4d8c14fde7d71b",
    "signer": "0xFA54BdDbc2fd0fA514bA36393EF2F5a80Ee9C49b",
    "userId": "428192787"
  }
}