Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '093634fd40d99c1f87395925b89482cb17f25b32afb5cb82fa6535b1f61a224a' 
  AND token = '/P5KE4hcU8/MblM4vpNuIHEcIuFpcIsyv/c2mTQt5ek=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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