{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "984259712",
    "entityType": "User",
    "nonce": "0x9383725ec5c7d865a09e52391a561903195a9151ce6bff9aab7f75aafbfaf74f",
    "signature": "0x55c9f15055c596ca1d3b11e2dcd99cd0cb5706d029f81a3b75c5ae75ab6688493a66a6632e384f61231ce882457c3eb828155efe4dc8d97a68aff8cae69fb6cd1b",
    "signer": "0xcE770fa346f7BC8641fB998220480D8C77045850",
    "userId": "993121304"
  }
}