{
  "manageEntity": {
    "action": "Update",
    "entityId": "940795349",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierayfrk5qgdnjzyd6oqvglqxxcgk7pqjdpitpxdmwdzzu3z6gprdida\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":2132229232},{\"type\":\"playlist\",\"playlist_id\":1976178695}]}}}",
    "nonce": "0xdc0c894fe6fd7a8cff34e872d9c472738f378c14521ca80046d6420ac1c6c0c6",
    "signature": "0x77875beb6107c43eaf22fedd50f4ca81f58ffccb05dd4051049e98b3754bb26b18fa28d7e323fa51d65042ecaa8b2680bcef2d337c416bb602ee79bf279997ca1c",
    "signer": "0x8D9fF7c77B40B31De4f985c6a8fE761A42f8C413",
    "userId": "940795349"
  }
}