{
  "manageEntity": {
    "action": "Update",
    "entityId": "106183206",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe2f21ab72aea65ad0458f8d2fac1bf9ed280cc9680845960075f606f97d86e7a",
    "signature": "0x151c2bb49a8433dbba9b4ba09aaaf9dda64fed4b026de29da399ab52b7599f6853f7d31afa50fd603fe0c2894b0afa4976643ad51e40a9bc63f7d60176d2c8f51c",
    "signer": "0x89F0c56e3D49B999889EbA45A7753e4AfDa0FEC4",
    "userId": "106183206"
  }
}