{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1010728",
    "entityType": "User",
    "nonce": "0xd1395f8847a2fa3e215d43944b9c68d9173a5b79c72f59c972ec811f21ce5e5a",
    "signature": "0x2dedc0c9170a46ed0e3226cfe37e4933e6b2adeae4c2a3119dcdb576df8a765a1cd1a7ea54a32f87e49f7b365288138e0b39f19b3130dde93f601ad9879ac4aa1b",
    "signer": "0x2F7db4C1AE3922aD0f32CEdED1870278dd17b64b",
    "userId": "467213409"
  }
}