{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "667809204",
    "entityType": "User",
    "nonce": "0xfc668e327310d1df085b1ac8deec087f37c0ec15fb2423cad00acec7516c77b7",
    "signature": "0x22ab9a88ff0d0128c282e2bbb35d1719e038fb580ac2f770a1cb79fbbaac99ec21853b6dcbfabbc10b339cc3753f73b2ad7161a01dbfa79744a6e97aa491f7111b",
    "signer": "0x1D0c500EC847246923045cB0a285242A93723f30",
    "userId": "302385956"
  }
}