{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x498e13dde8005ce85fbcc0ec9ae235ffa1abe616f33f7921b7d71b9ba987622d",
    "signature": "0x3b030d60d1fa985d26689c4777495a9ab3f95ef772b4de4f728fda41859c8e4e3f11f733bc623e6a1189ca2369a0111bcdab04a1ef6b02b14187c29a7b67e46e1c",
    "signer": "0x9A26C000dddBb35de70F49BeFD5Eb0e9501Bcb5d",
    "userId": "902447162"
  }
}