{
  "manageEntity": {
    "action": "Update",
    "entityId": "941711771",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3ddf8a2cba0dbe6696c00c227d7879a3cd8e7bd05914c5539d0cc747fbebff9e",
    "signature": "0xb5a8b2aa305efe1af5bdc232ac88963eec2e8e61432a54f952e0a126a8f60a4a0e2a3fa5740fa1eb6f778848ef26eca71dbe026e89b0d9b642c9f464d2ceca691b",
    "signer": "0xbdB8eA7Aa50C113b1755Ee2985da6D2DC957FE4A",
    "userId": "941711771"
  }
}