{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "75322",
    "entityType": "User",
    "nonce": "0x779bd61ad5579ef2a0975fb75bf91125f9fc57a7b32ba370e48dd2d6c6c83924",
    "signature": "0xd135fa40f08951019b034cc8931ef2a94722a30f1872e82e68ca8ccc9c65f61f60073c4a78cf94588e656a631d34cf8236153c4a5a5e977d2dae0ca16b4f4b941b",
    "signer": "0x33c702d534707f8Cada5DdD521C5900827973f1D",
    "userId": "5642"
  }
}