{
  "manageEntity": {
    "action": "Update",
    "entityId": "346502740",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x58620aadc4589f17c5a9e942aef2533ea151bc0ef5b68ec74365f23a25b10c9a",
    "signature": "0x47e06fca85d5b9295d1c1acd483271332d15556f9cbc33df1983fd298575a96d4831967544a4b5cc552004cc44a4bc1416f0dc10c68e67f761630553a8716abc1b",
    "signer": "0xa402029E3c079Cf277D537f9aC3FE9083e4d5a21",
    "userId": "346502740"
  }
}