{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x82b6f251fd37ff8edd93e0be36a8f04268ee3a0cb0d12980c76c86840c63e640",
    "signature": "0x12970c9c22ff78c77c5f050e12cf7e49e591c494d6cd3d77ca8dd750a9acf63713c391ca1552a2bdfbc430d80eef56aab8c6db6dc446c19a4febd0969ccba8491b",
    "signer": "0x7E7b9c4DAC3F284d889a5bc274eA80b8BA5F63ee",
    "userId": "670307808"
  }
}