{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "916564613",
    "entityType": "User",
    "nonce": "0x49b83c9f759141398dfff4c60e9bab2fdebb0eda7b9f4a53f9d122f75196d948",
    "signature": "0x1fd36e3fe06bf352010df11160c6bd86943e4507105aedf188cdffebf4b6f9357d779fa3cf740d55aec1f4949b666f287574c0813792079a71ab843935da954a1c",
    "signer": "0x6d6397f74d01E51Fc0C654f5703B972e7CF26876",
    "userId": "237542932"
  }
}