{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "760764",
    "entityType": "User",
    "nonce": "0x4c8bb172beae2442371d62332e378a3dc27ac5bcf8873a6be97f1f68a8123c78",
    "signature": "0xc9ba3392c465da0a2e9b3b537267559c9077c7335f99ca606a12fbff5945c1141999331539d7f86c39159fe853afd33230e2574fa3f42a95a5bae5ff7fe019ca1b",
    "signer": "0xe23f94433EED8958AAF9868141BA976B8fffb969",
    "userId": "307915745"
  }
}