Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0bbe749951f1cc50c54fdece487086dc630294cd204515199096ec2c2c12c781' 
  AND token = 'EPZ8pFvPxEc4AipHtG1UjyX/fKqdQZJb2ttmX0qyR7o=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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