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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'e3c025fb2fe6eeaa293011c5d92943154747b7fc1b9c5b55191daf6761b7730f' 
  AND token = 'xA7mXKoO9KqQ7seK/eLVZ3/Bw8TWMdXX9GtQpK69laI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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