{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc2a63d0107c5748cbe1f862d7a65c2ed0b2e0cc4fe3d8f386dbd09a4445a846b",
    "signature": "0x56901e63544aeae3c615f97878ea763ee37bafda0c65883737ce42c8dff93bcb2c9a7a6f0fdae6afc3f84e8507fd77952019a749f2fa87532be00e1543878bc21b",
    "signer": "0xD5f034a1974364f9cD887d2fFdaEf2B669309DaE",
    "userId": "280627015"
  }
}