Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0bb013a7d78057fe61497aff27ddb808a8ea45908285598aa2e5a8805548d652' 
  AND token = 'rrVk2Vp45SzhV7fUbdv4j3rW1n/gXp8O6pPIAVn+g50=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

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