{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "819578939",
    "entityType": "User",
    "nonce": "0x45121d0d9dcca93143bdad03bb4942359ee9fea7c394b006fdff06bb1bbe2b6f",
    "signature": "0x4f43ffd1e0deac79fc6294e8803d41775c60579082c638c899ce40a8ab3954375705849bd2ecc6eb8c7fe8b68db02b9a717a6e3cdffaccf8eed46dd97e8f22ea1c",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}