{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "326483",
    "entityType": "User",
    "nonce": "0x56548241ce37c60a2761442bfb0d5114934ffd437e722577da2135af14c63306",
    "signature": "0xbf573240cee22db9617d4be1dde0a8306a7facb2ec3de6f55d4afd2cd458c5f915795fc76e55c712e805411206074b1aa6ed0eaece1d1d6f829f82605b2aa3fc1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}