{
  "manageEntity": {
    "action": "Update",
    "entityId": "520139273",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraawc3a2cz6yktlqkbrerfczhf2lzm2fjz7aujjjj4oa5kcvfnoweq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":974980848},{\"type\":\"playlist\",\"playlist_id\":332499594}]}}}",
    "nonce": "0xede51b4fe6ab38a53a1025112a154041622e24f9176c4a070152b3183aab975b",
    "signature": "0xe4b1c3d5a5e54013de867179cbeb37acf467423a5aaf996df563394f8711b01660e95cde4515a71680c33efb9f99ac4d6223054a3b3d66a7506f4d3275ce105d1c",
    "signer": "0x2bA32d8171A572be6B52C910E5Ef9EFf5790c3cc",
    "userId": "520139273"
  }
}