Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '96396897a849dbaa44d4bc885bda75ce4c2a6216b082646b41d58fc14a93505b' 
  AND token = 'zVwfn/hHaCA1Rh9juF8MnL0ETPRbozNllsymPMldGyw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00046

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}