Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd3d9e280e25ac0aaa81dd5d16cd599adc4d3e1bcb31864eabb8ca478e42a185b' 
  AND token = 'EQkliP0moGlc/rJkEUb8lLZW0TOobreLDb1DBO8t7wk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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