{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "12273",
    "entityType": "User",
    "nonce": "0xc1e1d3c829a7d81aa80c4b0c332251ffd51997b57c053f71c2808b3caf990182",
    "signature": "0x083e62e1aae85f6841aa8583b99a3ecae17aabc5fd0cb7d3805f6d5164febb5a29b71d476a71960a72bd90e504aa86af98b5501dba257a5f6ffcb003de3a350a1c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}