{
  "manageEntity": {
    "action": "Update",
    "entityId": "279409147",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xabb46b05d0289f193d503f629045dc9f826bca50b30781bfc56756cbc9a44e9c",
    "signature": "0x5f8291f1a99173ef83def0e6bdb7f9026eb3bf882e7475d1d3d86386af0ac7f145737da358577bd5a6f5a666a6e1f710e5632312178df2814cc335f40638df791b",
    "signer": "0x23ebb94B5Fc841626e37a0AEa3B06dAD3A4cfB27",
    "userId": "279409147"
  }
}