{
  "manageEntity": {
    "action": "Update",
    "entityId": "720480811",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd1cfeb4a675fb9db90223097c27d3c643f442ed8e254b3faf505e97ae705cf3e",
    "signature": "0xefdb7350543b53699c051b57b62c5cb99fcc9dbd7a108afbd963bb3a26dce9613ecdc29807203c11bedb42ff9c6e04ab679a3e4aa26ad6f9b975d6b2b356362e1b",
    "signer": "0xB278E6E2f5a08e539FF5A4f870Cb91ec5A6a8523",
    "userId": "720480811"
  }
}