{
  "manageEntity": {
    "action": "Update",
    "entityId": "955617971",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe33c3edd286dcec1fd120efa71a097e6d0e71ff554e507246b8fbcbdccdb0042",
    "signature": "0xdd724488796f2481a8b81568835c5e550ba2fb1b0bd0df24d4e2a5e7e6bf81d558b8953b9066ebaed6e30b44ebbef056f2095a407f1c1d01d98b9fb10dc0d3b01b",
    "signer": "0x60a4610517E9B5229440e4706dF2ff12E94B1065",
    "userId": "955617971"
  }
}