{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "633313783",
    "entityType": "User",
    "nonce": "0xff57f54399ec35d5340979f78601de5ea2bbc23b77c04d1a81348290f70ed0b2",
    "signature": "0xdf6fe99fa9a35241ad274561b4a82005908408cfa6396191cdc4c060dfaacfc963fcab5fde7cb55ecfed0eba2ecbc5cc2e121e83e90746d789973fb6cba5231e1c",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}