{
  "manageEntity": {
    "action": "Update",
    "entityId": "541810070",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierakj3smb5vpxi7273uuryne5fggb3afaqhonpkvnuatifnquiv2ghq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1484137546},{\"type\":\"playlist\",\"playlist_id\":833247482},{\"type\":\"playlist\",\"playlist_id\":1806912349}]}}}",
    "nonce": "0x1f69fe96f1323fa1e31531cdd39a3176f606c49bf4235f3298361bda0f6ba5e5",
    "signature": "0x4ab54f04ba8dabff16ca93089a52f77be8e508d0ad654e34942b8521d4edbe2a05ccd39cee83d5fdcf20c0ac21601a314eaca338366ee3a12b2dbc9f501033411b",
    "signer": "0x6f53AA771fCE7a4F822C3E92705503c552840433",
    "userId": "541810070"
  }
}