{
  "manageEntity": {
    "action": "Update",
    "entityId": "513169940",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x2db750154978ee19d7fc81d2c70646314ec3ef8c34ca96c305bd9885e6f3dc3e",
    "signature": "0x92bb5c04dc20cd6a00bee9f6b48431cb60ddad020fe39df0fdf64c523fff7f591d60b6e4b9b79d1180164a12fddcd80fc60b5803ee4c2bb16fa9e42bbc21ee971c",
    "signer": "0x773bdCC3FF748BF61b779D7884757ba28d661E4C",
    "userId": "513169940"
  }
}