Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9fc828deac79fb11ea5410a278b7cb1fa659517980f49982018430e6de2542f4' 
  AND token = '19tgco+FToTDc4Pc15GojKJWEM5Nat91U7xTSjs4p2o=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00122

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}