{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "988934176",
    "entityType": "User",
    "nonce": "0x1913673704c3a9e2e134df04782723fdf133ac6344a10656b7cfe8e60a9fe198",
    "signature": "0x2c9aad5eda2ae19988c332e03b370d802938e6523a601c09f9d634bd6d1f39066b909528da0ea8980d457f19aaff705aaf185e9720e0e067187e5acefe85eebe1c",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}