{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "299187",
    "entityType": "User",
    "nonce": "0x123bd73911043c102964805b9b979de449e1e452e3df45ce4228adec72aedd8b",
    "signature": "0x1b846d0b2bd3a1f2ffc07181f310726ce35cd83c42d9117eee66b65517103d6275406945e612aefa04f91748da4b6e2d5a46aae45a3f0336fdbd31ebb7ee9c4a1b",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}