{
  "manageEntity": {
    "action": "Update",
    "entityId": "217574494",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8d185d0dd2d1c8aaa627f749e5bae6792f2996ba8c38637b7878815d95816ebb",
    "signature": "0x5a8e655bbb4efb9e68415c4689d8dc3d08fc56b3a3bb9d08fc8f253cf4b0a71f6c37a56b43dc9ff126f8a49a4156d3256986b99911e313e3f2b4226181acd2f31b",
    "signer": "0x1Aa01c3B92ac91B734FD825c16CDfb6a745B1cE7",
    "userId": "217574494"
  }
}