{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "217588",
    "entityType": "User",
    "nonce": "0x2257c1d21c77f53653a7d4bf6929dcfa4936623ec99768d89ab5d99b9d8b13ad",
    "signature": "0xffc52f8e9ae3c73cd7a9d13bff96eb6c9fda0b9a19c3e3f4190519c4b2bf66d160ef189686da4566e7cc9be725549b6933e7664910553148949eb46198e969a61c",
    "signer": "0x48ECe992edB7C739B36f37DDbE8Fe352996B5A56",
    "userId": "183063753"
  }
}