{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "374899",
    "entityType": "User",
    "nonce": "0xff9949bfca509fb396c0de929acfa56d72d0cd0c72b4b4541b1bab180002601f",
    "signature": "0x3517c670fa5958a505bec84e27c043c58d6b477d24a5c61ce15f9cc3380030305844435a48ecc276dc0b7647e5f018d6b05efc2b92cd5896ea933adc16edb20c1b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}