{
  "manageEntity": {
    "action": "Update",
    "entityId": "179352401",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x51975ab95d2f3f577c8436f97bc60256b1f302af748bfb2740dcb840bf867483",
    "signature": "0x6bd76dd8f925effccd9dc9bd5feaf012167be5ddaa13bae0480b4a9b45fbdf2b3a5563efd2443bd1877903feb45d4b0f17cf8a2b22118afaff251d35de2d64661b",
    "signer": "0x0598FC797642238bFb08593189CB8B4b21aFF411",
    "userId": "179352401"
  }
}