{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa5631d33276501720e8e757997cef7fd4b11f9b723144da2601e3bdd4d59d078",
    "signature": "0x271ad031f50e9109a33dd7b9bb0680f714c221b918ad0404633e0692bcad86a03da414c104d69a51e5ab145dd41e482ac868c851eb12e0324549dad18de7d3301b",
    "signer": "0xEFAB3332CD5EA33e9817aa57B32CaCb8Acf973A4",
    "userId": "407216161"
  }
}