Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'fd01ea57290a5ba4061ab2a6c2088c11969ecc141a73ffd6b67f359cb2cd0d26' 
  AND token = 'cKUOFhVAbY+YTXY6vMpWOhkEsMtjPNEi4XjWGaOi8qk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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