{
  "manageEntity": {
    "action": "Update",
    "entityId": "283783333",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xdd679a3e8f1180fc212afd8425b7d1348bbab70e85e087ca06ee0477277ebb3e",
    "signature": "0x388dd313477a6df0ff86f7afc73865e4cda555fb71dffb77ade7a6370180f9f51a858f6815e77bc34f30f0823533fc5886f3bfd816b1f71a42a4ab8fd5ee94961b",
    "signer": "0x6f828868368AA98fd60Bc2c5C32f791eedF56e98",
    "userId": "283783333"
  }
}