{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "815537464",
    "entityType": "User",
    "nonce": "0x1952e88c2bc960dcaedf72d2754492871fc0f208a76e980e681ef10e03b96797",
    "signature": "0xc15a5f0b28dd6780be28b978a667baa39643a168eca12dbe1c51910ac74d9e41726e5af713f33e954eea83e5d3d5aea0908d81b09fc67b28e211ff402304b9611b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}