{
  "manageEntity": {
    "action": "Update",
    "entityId": "560630042",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x796e5f912244930107555c2b083d3ccb2e55d3f9a2d95cf5fe226620f3619201",
    "signature": "0x13e45c133d2ba0ae33cc24939c41a718d38ec76ccb64efc640999e1fc1dd023e502a2f93d2b639aa49e6ec4b933dfab3eed0c830934d99a17e343e6fd2d662c21c",
    "signer": "0x0fdbE0966d6f65E3DE225D16D06131c10d4F2b3e",
    "userId": "560630042"
  }
}