{
  "manageEntity": {
    "action": "Update",
    "entityId": "428535579",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x5be153e1993f3f24e5737a9634d20f877d813a58e8255bce4f8551b89370f138",
    "signature": "0xe2ea1e9dc9876fe61b99825a50ed4eb3aa526d32ac179b766fef4b2348b26dfb587b8810d42b2b4541da56c68c7d9445b08056c73254fccc9cadd5d25895a7d01b",
    "signer": "0x6acb8e6103781063ff1a8cEE612F7c3373737bc4",
    "userId": "428535579"
  }
}