{
  "manageEntity": {
    "action": "Update",
    "entityId": "53500593",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc9b3ccc2e5429677739ed9d9c34701d2732af9a883b6c032499e7f6d773035d5",
    "signature": "0xd262cd671bbd13ef2e4d1ecb7425b2765de5b88dbb9b2fab913ef10aeed3555b146dffef60da64623526de123af1b542296f66a69d7e006f232ef6e797c140a21b",
    "signer": "0xBfE06ba9A6130b7E95879E0aeb74F5208025ce25",
    "userId": "53500593"
  }
}