{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "173195",
    "entityType": "User",
    "nonce": "0x16ad30aa9254f0aa0badf3557ccfae6f967b97b5737bbf3bcc7eef0dbf3249fe",
    "signature": "0x98e2e14e360d649a26bd277865b42677c85361ea3da8eb2dfa0c1a7f65315e5c641b96978dbfd11cfb0517056bbd8ad7414e09a5b7746c848d228d278f6959981b",
    "signer": "0xC57e1cBf8414af8d043075F299b2f13C3DaA1Cbc",
    "userId": "869267771"
  }
}