Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'bdd0785e3eaaab929293dbed7c6e67a82a1276f45264d95899fa15924a8edf2c' 
  AND token = 'v21rJVeutI6b0QHH4U/TE7bIiPQGJeG9pohWWgTtOXY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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