{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "676081897",
    "entityType": "User",
    "nonce": "0xa92b90b5957c6777d322202f1a4e0b7c5ff4a87324fd260367e9cc2496a75664",
    "signature": "0x5a86f2ac9dd5e36d4916b132cb8deae77adfef882522708769232431a042d9835beff5a6b5ceffa7c96e62a57547dc446ec0ae517b6e1f472056035e35b8cf461b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}