{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "366478371",
    "entityType": "User",
    "nonce": "0x71d6468f363b2fd0f1d9f1898097303da08320a2dd745c582acf9fba4c145aa3",
    "signature": "0xc82f977e14c7b067ba330a43e881b39ef1c342d5e732264322086e5f6d1b535a19546b02a6cffe39e09adb867b327b0a76cc66a0deb0c2b5c9caf1b77e3c23de1b",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}