{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "148339",
    "entityType": "User",
    "nonce": "0xcb0d917ad7dd5a9a8b95d6e64f2545a85c4616c293b5fbe2f9c503615b506daf",
    "signature": "0xa35dfad3ec88e76361f8b6e202a0d0211efbf9295abf032d782500049285a1af54a095cfd3fe7fa76f14d0c69cec37d4637725141db7870ba97b3444e8a621ba1b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}