{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "667809204",
    "entityType": "User",
    "nonce": "0x607347fcd8cbe4c11de8bf78cf401d9a36799491524d786be1bc35831527982b",
    "signature": "0xd709b35a56d3c4db79d680bc603abbad44fdd41e112d4fa836946796d6c71b98079185c9f7bf683f22dcca04a8f97ec69642793250f533c05b97c95802bba9e81c",
    "signer": "0x3EFFF4df817177c0A8370597a286FB16Cd1DDd9E",
    "userId": "688850395"
  }
}