{
  "manageEntity": {
    "action": "Update",
    "entityId": "418312750",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xdcd4ddeca185367f530511fae167c253602af9cbf9a067916b596f1e1800213e",
    "signature": "0x8acc751569b5f9bf677b4faca176bfdb5ccb0dc116e6b49df0ba2f83f4b88f396410caeca340baf0045947e232c93de2de6ab1970f83df92a8ad261bcdb5667c1c",
    "signer": "0x6268f3F36E0fe8D3E139bC6d32d7539887721848",
    "userId": "418312750"
  }
}