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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9053393cb523936bd376042b85803bb9b2dcb9b80d619cb8ecf521002371237f' 
  AND token = 'jGprvfQpzDvP0h5IRA/v+00Ywczk1c7Eckz46r58cOQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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