{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "165525",
    "entityType": "User",
    "nonce": "0x517d53e6ba6b6fcdb7349cc5bcb21a207e4856d86faf1daa2e14c4d8de0543a5",
    "signature": "0xa0c9e8795ba7594049750881fe2b3317cea980602547886ab58572f7b85ebcdd08977b42475b9e0f36af24f633b60e1cf3c1194488190314905026e989062b721b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}