{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "264740196",
    "entityType": "User",
    "nonce": "0xa4711069b0dc4f742b4f732e162af7a0afe490e38b1862ad0a05275c349f0fa5",
    "signature": "0x66c656de482c25293d1c9be67499cf71df7d3ff1b29109c24ecea1577d2ecdd359270526bcc54aaebc176df121a5626c3a979b7d55c0f0dcd56b1bfb5b6070891b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}