{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x80add9980b9f648260fd1bdcfecfe6d24b2c6064f3586d0ae5794485c7dc4fd4",
    "signature": "0x57f029a56ebee8bb0780ec1112f642e7d28163814ec469b21c1423582b4e78f2589fcdbbbf1df4594b50e4628f55684a55b50fb1ef6fb1c264fcb59a5981b9911b",
    "signer": "0x686ca55E05dfb50Fd623b23BA4F03cd000CA9582",
    "userId": "969864347"
  }
}