{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "238041187",
    "entityType": "User",
    "nonce": "0x748cd9ff392b2629e4c83648c068c93f3fc075bb7362dd393882be972ec053af",
    "signature": "0x3eee16c8238e01794ef92ac62e9e8aa5099032366a5b8385fd68237e67c217367b49d9b8c90a86c6eda666e024ca52e5b72b3a1519b084fd6f65a501e0c571c51c",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}