{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "580720856",
    "entityType": "User",
    "nonce": "0x28602226095e84ed0bb30c9f25f8f6b9b056d15284c088a2c655a74eb883c533",
    "signature": "0xd7a4c2419ed6c65b552ad7cca6522b008c5a19279c94e1b2a6f966f5e235d4e2040d299fefea3bfc89e7341126775b5bccd893631cb733043dc4328e4d7dab171c",
    "signer": "0x88140a1D59593e5659F5FA74af30c444D9c193Ef",
    "userId": "630153895"
  }
}