{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "7498",
    "entityType": "User",
    "nonce": "0xb515d937dd9d72dd6ff223e47f15664ed897d2641d265c596f47404ffb72866a",
    "signature": "0x7374d55b5efa63a965de4031085778f77ad5d363e347e7ea204c4159af6de9165b9e3df6a0c48a8152ae95555710f3680afc22cce7f68bd1212a3425d5b3e4f21b",
    "signer": "0x3256Bd2D0B1984E7df4FA525017aD9bA48470760",
    "userId": "51"
  }
}