{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3fdb32bdfa25f4ba0f5a3e6177c22aaafd0d51e93ebe44ede84a7c694e5da889",
    "signature": "0xa363154c4bddd2dcdafde953e30dd2a3a045f475875f48311afd60f94d563e0a54755842e0317d40871d98aae1cf9224aa2531768b9ca76c343ff9855411be761b",
    "signer": "0x1a92e17851B135a180c1FAE8aABcB3614fd4D9Fa",
    "userId": "476180660"
  }
}