{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3253",
    "entityType": "User",
    "nonce": "0x0a27999c0e6347f98d6447a0643cc4e440d4f2466c789d720fe39911077994b5",
    "signature": "0xa5c3b48e03bb63f831340eab4089f7e042b8c0abc5a6e33c02b598e6c138a1a3538a787762994e32c608f61fbe698ad04e6586b5e44548310a976749b2f524981b",
    "signer": "0x3CE307cb27B2Fc2b03Eae311050CA4e8C34Fa57d",
    "userId": "50936"
  }
}