{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "91846",
    "entityType": "User",
    "nonce": "0x2fc1d363e4a4b89be832befc71846cf2fe5e3afadfca282ad592c969fb4e454b",
    "signature": "0x2f73d674eedf9ae5b1feaa56a4bc67e17f228b3b2e6f59e2cbe58497860bda9341e1ae8d10b7cc80a65671dfa7f6f4bd9a7bb7d69f94fafb9b94c2780a0ca3321c",
    "signer": "0xa57b4357994d735DB3Db20349Ac21e880472e94D",
    "userId": "521443517"
  }
}