{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "633924738",
    "entityType": "User",
    "nonce": "0x668fb260acc6de971b234c9ebcbeb34e4b1f5b9eb1328ba705301c953625fcf5",
    "signature": "0x0ba57a08aec32038261b3a2848f20682aecf4f70f4b549e49355361e4f3d619352bf5e68e43110256155562b50584e5d63a8722f2236126ee6239ed4bb2485481b",
    "signer": "0x83A4162810A55B49858D3b17aC8572D1c34eC8EE",
    "userId": "517422960"
  }
}