{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8eabbe891fc91516ede7e4fdde4ad09ce04f9f4059be61036956f036a655cc11",
    "signature": "0xbc0c9e4b8e6a42f6226e5668c336aefad00a71e93da85ab668618685f34307226837839e243990102c40caf740dccb18593bbbb3fa4b7f8413d9c6ed4a758e171c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}