{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1873428",
    "entityType": "User",
    "nonce": "0x133faf209d774a4912134ccb90dc4130aa588d9422132ac9370f83db0d7fcc58",
    "signature": "0x34e9f7b92b31e9f2cf5efdc946d5ac39a74996d60d5d4065f5484c6214e0865d67ad3f04fec5a7eff8ba78f83e2c8ca700401a7e766a3cb554748c765f25bd9e1b",
    "signer": "0x5d38Cb184274A585dC79f62FC669Eca2c573005D",
    "userId": "867710486"
  }
}