{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "722965910",
    "entityType": "User",
    "nonce": "0x581afc48f74324d6e49252a3457b8dddab52bc6ab03c0b3cfcf908bdde9c8b65",
    "signature": "0x9c61cc62a3de9a6f10265e28d2af73b9157d2f5fdfdd06a924b3760942d9f39e301dc316af976bdfbe9ed4f48f32839033b4297a0a9a7b07d7ffa38aa40547781c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}