{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7df7d16f2f4e9dc93b74cadf08dbe3f1d848b657e12bc913944428e26d5180b7",
    "signature": "0x2b445d8e4bf732d1ff46fb334308e8e61721f064b5d60dbb350faa168d4026dc48b59589f5179a13c55f0c6fc40adc9b4d75697f7519eefeff396cb6142e19c31b",
    "signer": "0xA2a96aeb1cc4DA90EB01C12046d16159737f9AF1",
    "userId": "103076055"
  }
}