{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "57307",
    "entityType": "User",
    "nonce": "0x59ef7f9a86360ae612c3b31f8c0098249f00240a04d3ecfa4f6edd9ad573729b",
    "signature": "0x0d9d94fa5822cce74759d53184ab455936487da11f9a4aa27802d895b270599848cb96d8f742b66e780d153c2bd66470083c89a483a96430569edc575847b0a51b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}