{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x243c788ee6de7f05807418e79c26c7558b81a04d8816921f76f126e4eb23d9f5",
    "signature": "0x91d2ecc4799007abf994ad861f5f2e7e09b1c2e8b825b733f64b32a0580a2c616463d089eeaeeaea2e689c5a023976c4fb8c7662c07fa2b8c7ad5a5f977b936d1c",
    "signer": "0x5fa60F185681545769de01098bB8F29cfbaE3cF0",
    "userId": "489026160"
  }
}