Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '6932f89db14a86594621b27479334fbe70e0f5232f34458c1c97fe66d2d453b3' 
  AND token = 'EX8x8zdh4bsEYQ0yorMjjL3QAZdEWsTpWZ1BAv4BNOE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

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