{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "599804",
    "entityType": "User",
    "nonce": "0x8907efc31af317bcf3ab86bb0bb1d2e3c5db4e5adefe71850d604e50588e0d2f",
    "signature": "0xa44b445c6cceb980df04f90170c0128f0996a10025a826fa7a860ad34cbac845368397a3d7697660d0c0abe7e40650e69aa08a93162f355bd6344aebf03c54831b",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}