{
  "manageEntity": {
    "action": "Update",
    "entityId": "983884919",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc63f2f877ac297e40d09aa346e1b187e3bc0c523e3e32d71eba0c96c50fb7c43",
    "signature": "0x3c343d37529174c7a4fd857dc6e6e00cdb98d5692ed131351722320087c5a4b952bc095f2079dd76c28270e3c78c5cf1b6368b2114f4f6adea2a4233187346f11b",
    "signer": "0x565Df190Ec9CEf88C79edF64bdD3Ce7305197601",
    "userId": "983884919"
  }
}