{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "753741083",
    "entityType": "User",
    "nonce": "0x40156b1933a8f1ea8d00ed348ee22d8edca4a3ff54d95b70c958a36d78b962b1",
    "signature": "0x99c9466a75bc53f2986d6c944dc03fe0eda7f93aec965fab91427de6a8fc736a76f2d242c1fa44c9a0c6f4dfb7df79d900ec60d42ed33d9c1cd639ca9420491d1b",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}