{
  "manageEntity": {
    "action": "Update",
    "entityId": "358738258",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x47d5b3b7244c28848eaca8527f3575150304f12b317bc8a6aab6138e2dd5412b",
    "signature": "0x3d3349cf094786d55c17e4573173ef0505460c975c4c2c4cbfcd376658b98ed7255a80ba02506dd6a1c3f56676f6bb84f336167e8eb06ca53db2694e7dde9edc1b",
    "signer": "0x906B16aF7f03ea3812DDbC744AD8c982e66a8E95",
    "userId": "358738258"
  }
}