{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1619208633",
    "entityType": "Event",
    "nonce": "0x60bf6c5b318632d84da6937fbece8d4de37ee8156282564d76af64536986e504",
    "signature": "0x11df11576a87cb2a5c6a23232cb75690e8bca9b81ad79e2632629a4f8c11838237daf8b7f2a039fac596ef7384223fe0333a5f8ea16ca4bf570d6ae8daf6c1c41b",
    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "103994"
  }
}