{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "772682384",
    "entityType": "User",
    "nonce": "0x5da127b9bae41978cafb39a37db469bea7bc1f77a024d53d284649129a772eac",
    "signature": "0x2de8f54bc92afd241e82e5c15aace39888df8297d5c7f606278de73ca4b2fa355d254f4e74b22f32afece754f00594c903ca0907e5509f6bf7261ab67df922cc1b",
    "signer": "0xCd69C2Cb50a21531a08Db7A8333c51532ea010f0",
    "userId": "837274016"
  }
}