{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "83911",
    "entityType": "User",
    "nonce": "0x692f171f2713cde8d326ba556b3c21286f4260bb3dec80cf517986da5af00c80",
    "signature": "0x57481917e06c93c5dad05c7e8a05dd9ba82745e3aeed51fc76d730af7248fc3c0451931018205e6ee39410aacc7b26d655828d7382bfab66f1efa432d81304571b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}