{
  "manageEntity": {
    "action": "Update",
    "entityId": "269685644",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7sptoufotihi5r4civyld3bnpadgjgdvna3p6gqnhe5zcmvmra7q\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":2009947740},{\"type\":\"playlist\",\"playlist_id\":2123804321},{\"type\":\"playlist\",\"playlist_id\":1330367223}]}}}",
    "nonce": "0x8820a03192f936707ef8a5859137fd9df7155d2c509b5641985fd2d7358a8ee9",
    "signature": "0x4e23e6ef6f6ce4dfdc857045206cf4bda01bfe21f98d14fdcddebab53263157d1aff4a04ea945e7bbbe6d63ac5370d6743ab70ea9969855815053ff01e9779ac1b",
    "signer": "0x8c177d8e36C945fa5BB045974cAC50863a84fa7e",
    "userId": "269685644"
  }
}