{
  "manageEntity": {
    "action": "Update",
    "entityId": "708281325",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf958f6efcc24b1c2a592497e2a79591e7367b4e6adafbdd8628ac4d33d53afae",
    "signature": "0xa03f071aceafe704fcfcf7bb69ee81f97532e876c200618856514de533aa3b995b15401c2a7a32deca91fc481cb8f876cf87fd081abb79bb51465e26f93fede41c",
    "signer": "0x95039C5e9fA958bCe7C8bD76e20eb23F4E531e54",
    "userId": "708281325"
  }
}