{
  "manageEntity": {
    "action": "Update",
    "entityId": "641081592",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3347d527d56474bb11568ed81658009f0b44422a80eaa0ebde3f05a693e45a7e",
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    "signer": "0xc178669440eF3109Aa43E5D2cdA43F632f6587FA",
    "userId": "641081592"
  }
}