{
  "manageEntity": {
    "action": "Update",
    "entityId": "369145976",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierazbzaiqi3g4b5t3ovpyjhzicrdddvdzceswc2hfsu4btn26u3wofq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":273196207},{\"type\":\"playlist\",\"playlist_id\":1518528768}]}}}",
    "nonce": "0x25f08de2185012ba87e0db6dd80e32ac95f68a5fe227559270f582fabb2b5184",
    "signature": "0x3bde285295698e32c770214bfbd2f30499908de8b49d87d759b553c421bd55f123797e486beb7273fcf4f8b72001da1f11aff46dc33596f1577bc9008a3daaff1c",
    "signer": "0xb904172F0B95C0ab98D43c7046A45F21C1a46b0b",
    "userId": "369145976"
  }
}