Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '011b59e6fb8ed90242921d5b869ca2806c06e76076070f62640e6324769d574c' 
  AND token = 'NNYF7IytWDOOBaCeuMBabdL2T8QhQef+d41GIDlq9Fw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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