{
  "manageEntity": {
    "action": "Update",
    "entityId": "456815217",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
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    "signature": "0xcb86a981fc4eb8c3819f88534834744e937c72fe7cdbbd5c3473c8dc703cd5562f651b771899ee989cfa20c86590e07410c88f49d13147e2b15debea404163991b",
    "signer": "0xc24455577ec995DED9713977dAB2Fd68e92Ea8A8",
    "userId": "456815217"
  }
}