{
  "manageEntity": {
    "action": "Update",
    "entityId": "406716751",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3a0a11e99d488ed353fa7c2cea2d99205f13203264e3c23de24dac94ccca1197",
    "signature": "0xe0934de10ed8d1437e201bc3643fc78aff90fab9cc4462e8ca16cab552916a3b47acd00a9cff44b50696b275bca4fe3e662c5a6bf16e096f815473d261e162ca1b",
    "signer": "0x31eba27Ca105bABB3B8590b9A71b07C6d1e7c747",
    "userId": "406716751"
  }
}