Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ab9415ef101201b77753c0aa4e303bebc2ab32b22295372fa7cc75b968e4034a' 
  AND token = 'w0NO3OMkgyhAQxfo7p4100y44cMin6Q04Lnn3eSCdAU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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