{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "661101608",
    "entityType": "User",
    "nonce": "0x9d857a4988028220e4d25b279e5fb87dc8d2a7355c1b6c179c62e25c44d516de",
    "signature": "0x898e35d3293c38483f1bea2d10ee3068cb04465ef00355929c6219f6925fa413741e4fa7fc6a9b66109ac73cb35a5a5dbd8661ce14c89e7300bc09d9a976cec11c",
    "signer": "0x262280F8C67eEa49702D4CCeB1FF9CdaaCeb4dAA",
    "userId": "525780347"
  }
}