{
  "manageEntity": {
    "action": "Update",
    "entityId": "946701878",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x81277ecb722faecb8ba44319b215a428055b2f88579215a4ba2c00cade69524c",
    "signature": "0xe0c62c3b31ec6a899e6b7157c1765d62a7bdc98f983877ae2860e7c436343fe02359d854acc52387340c0943d90359222c80a6bbe4aceb0cacdaee484e4d50cc1c",
    "signer": "0xBb4808d1F012836c9B892286a313C6c6eD6E10e5",
    "userId": "946701878"
  }
}