{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xcfa2f52d0c98a37d4df8eac3b611798903a59897d07098a5f1a1e7e92373fa67",
    "signature": "0x9e9ca1269e0776ec96ce5bad9e4ba08c1e80a1c895ca885c3ea812a98405220e05831b3958b0175b5a5e73f1195a85acf201cd6b5f4b0ae8de8044e35a8184bb1c",
    "signer": "0x3136D6320D99CC5f610e2AcfCF37DEa2A5Ca1433",
    "userId": "754312475"
  }
}