Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ec19a0b58d2623a096ac1b9f5d5d2720d8ffd4037ce966229f6c59bd65f84e2a' 
  AND token = 'tGIg2C9fHEtvbL1VlX6zuJIs8red5P0So42+Y17FfT8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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