{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "74667",
    "entityType": "User",
    "nonce": "0x5c34f4fe5ed5b700112d22659d20607e3dd805a758aad00d5749b2cb121ec59f",
    "signature": "0xfee07c6782c1d58d11c44f34fb6dd012d117cd5014764dbc72c75484baea38bd77220d92e262d068244cb97ac01cd65820c95b1c6f26b2598bc95f5bc9ac25381b",
    "signer": "0xA3cEd4452Ec88415B96DE1F0BDfc3a358cE048b5",
    "userId": "387447420"
  }
}