{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "594615071",
    "entityType": "User",
    "nonce": "0xc7f2cc9c8cab4722463613620ad3d5482ac78378515ccddb54615ae672598d0b",
    "signature": "0x6323f6c1785aeefc2652be64eec24e21f9cb855fb6ae1604be56b86acfa2a0f014ef01fbdb127a6d7acce07f953a00fd5a436b6712d1b3be58d43453c3f27d521b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}