{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "327343",
    "entityType": "User",
    "nonce": "0x27354071bc85c793df2c0fda2d51324fc0f22a29b1fa601ba87cb83d01960441",
    "signature": "0x9c142b7a220748ae6e58247415f099fa1cb740e38e3011e0868998adcdbee9b912b5a01b48ea810908f09ee8497c21aa1883dded19b9fab61eff3cfb3a2a0de01c",
    "signer": "0x1788E4C39d3326e598F16767C69826869594E359",
    "userId": "116504833"
  }
}