Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '11fdd4981501a2cac0ff84d6f8c17a324a680bf8053136a9dcc4f274f9f65855' 
  AND token = 'cgeNhN+dyAV/s5qJC27Y596xB/9f9XZ790n3mwrrsV0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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