{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "404",
    "entityType": "User",
    "nonce": "0xf3af37e9aa23ff3a2d4bd70f88fd91b72ae179c62ba5599c828992f5a4e40887",
    "signature": "0xfefb97f22497553f9361f3a48006271814b349a7dfd3b322832f3235326a95de2355cc9f414ea6324caaa2b4fa4772e0fbc90556997c3ceb1e053d610a0207901c",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}