{
  "manageEntity": {
    "action": "Update",
    "entityId": "105402635",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraq3ow5ikmqcx6x54aogjna4xzafxwfyej2jauv56af7humap3freq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":29217}]}}}",
    "nonce": "0x1d00fc578a44ded87356ea73527e1ae57c603c40b03f6e1d41844dd54ac3ee2b",
    "signature": "0x6485cd6e4a32e04a03d0c027d3c5a287391010a879e37e3f4f49e74351b351d15440caf49207ac476a2a8435e14b7abfb4054bcf6465412e2d7752ed1474b1f01b",
    "signer": "0xbcF27CD259a120e92577BC7a7EB95670b3A0E2fA",
    "userId": "105402635"
  }
}