{
  "manageEntity": {
    "action": "Update",
    "entityId": "920761053",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x7c6f01c1cc0e7526b776001ce5daf9ef7ff7e0d0ede3854513b20da8d9732cd7",
    "signature": "0xd403a1b3a30e0996209024aebca83a82e126fa39f55d880da708f38c3f369c966d71c33ede62cbc047d0fbf7fb700d680658ed05dc2a59f93199755d7cc980ce1c",
    "signer": "0xb40a27Bf4C7b083385476dA3CC180F9c5BB65aE7",
    "userId": "920761053"
  }
}