{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "389016497",
    "entityType": "User",
    "nonce": "0x43c6c85ed886977581a45c59c70e286664b742c6d0f1d969519f22beb4264f43",
    "signature": "0x7faf528130dd2d9f3f6f48a258ab2f1da89386631e37151d5de8edd91dd5eccf09561e074edc5a38a5feb81435eda07ed7f93fbba22a895116b66fbc67858a8f1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}