{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "568518925",
    "entityType": "User",
    "nonce": "0x302c02f6436bbf95b743a8435c465ad561704a96f86a320a024d37a19313c4d2",
    "signature": "0xaf92914012cf4fe042581d4a31f8c8d52f19de718e8d871f42f7d5e03328fe757315b34fbc4c0e515cd5d9fb53bd7ca31074a945d64f4141b631b2b2525f046b1c",
    "signer": "0xE4c0c73a0c0CD7f65f1bE942f8127c8753aB89D9",
    "userId": "857284925"
  }
}