{
  "manageEntity": {
    "action": "Update",
    "entityId": "649036093",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierau5ipwceq2cc3j22aq4f5ieuakvt4fvmpnh6bhvcf4motmailyqva\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":195663925}]}}}",
    "nonce": "0x4e1b0c455b6df26e22d04a2cc4efcc6418b336e0a3d0f91e013479fb635d5dfc",
    "signature": "0x0080021560d858285fa01e51444668519505c7a84fe097b4e4986fa7dedc299b45cae6db83d6305c61a9600bd78831e93d11c9dd783646fbe503795eeaa3e5a11c",
    "signer": "0x8410ae550e371F50E654eE78f3b43Fd696c1a25c",
    "userId": "649036093"
  }
}