{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1719649",
    "entityType": "User",
    "nonce": "0xc778bca8816ad01cad39246f321784031d336d7e8170fc874d4c49bc982f2bb4",
    "signature": "0x065b842df1edfb793d907b7c18fd78a0509ce6e8fd053f0fc6cd79d3f526da22049110d4415664ea6927fe5c2d5909a0bfde45c342ab2eda8ea6b1adb7d8adfb1c",
    "signer": "0x0319D614D59F18154d648c7A48469504C3690FdE",
    "userId": "852879658"
  }
}