{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "377610060",
    "entityType": "User",
    "nonce": "0x747bb811453e0d5f2c3d48f4970b581204f693744ed21c940d4423d67ef6897b",
    "signature": "0x51bd3a11ebbc93a8e1715f8eb18933fd92ca7ffba9689978d992afc1982a21e85ae0f11035b5e7ad2dc9331ae61070be940c029d7a668e1193008add18f33d101b",
    "signer": "0xE4c0c73a0c0CD7f65f1bE942f8127c8753aB89D9",
    "userId": "857284925"
  }
}