{
  "manageEntity": {
    "action": "Update",
    "entityId": "186820238",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x9efa89c691022fc32c61519dae5021814da41be4c23d3f3a03ca03bcb876990d",
    "signature": "0x7261fac4a8fa08370d997d0b79c8c9925726c1940c8faccf9d3a98a17ad649a437c7a482f9824057847c17bcdb3e0a126399d831ec9b8b54a70530a7edf20cec1b",
    "signer": "0x331f0DBE049c3541401bAA81B91f24b43ac48B7f",
    "userId": "186820238"
  }
}