Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'cf22bbcd9393c52f5e5195ac156a6efa0c0be1c05bec585e6b90817332532cc2' 
  AND token = 'eOOY4E0LjWYQts4EYdgJ9UQS7wX3z6UZSzB4lYMxxPA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

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