{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "322803",
    "entityType": "User",
    "nonce": "0x7e63df2618245d1b9a56940539ddcd5425037f2846fd19cdc4a7382a0854e08e",
    "signature": "0x7e92cf30688d546ed5f6129c5b0daf8dee7197a7f1505b296ab6fef5c5504dc0291e1088c5f552a3517044bc329bcbcc7c8b8c4bba30791a42d5bf12303745011b",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}