{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "580720856",
    "entityType": "User",
    "nonce": "0xa59a22071b304ec4226ae5780f134eaef8cb30dbe6387117bcede06a5e62c628",
    "signature": "0x16e1877215a7638fa892034f796e54ec557c52f17f68407b4b9b437c56a8321128689b7546f6a8c7def3ea80bb29b23b5ca2c2de72af4c051789ea09fd9093111b",
    "signer": "0xd2034C6636b4261c48403302a162304227a2BBFd",
    "userId": "39985301"
  }
}