{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xcece07130de0e5bec796bf7404867d2ae6c347568e4862d47e1dc0538cab1479",
    "signature": "0x5a43af54da91e50dc8ed6fd11f11501ec5a54b24d35995ec002335b981823c6127d24bd54782d8344c8a07c57c5881728b0e591d882a8afb08a95661912ab79c1b",
    "signer": "0xeB74eA7a3eb929695c60F6F235B55BFCfe57BA43",
    "userId": "635419057"
  }
}