{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190942",
    "entityType": "User",
    "nonce": "0x9c3459715044d2afa07d96ca944ff4b325c46b6ee67c6681dad6ff44625c2c15",
    "signature": "0x6e25b329d958e5a4f2bddfebab9286eec32d65f5755169f116ea020c631dbfe464b31b803b881bf15f0ed658bfb6b865a701c91ece728dcea805ce862e6c8e361b",
    "signer": "0x4dD8f87Fb57e57661Fc7F115acb4a0235f415ABA",
    "userId": "806547662"
  }
}