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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '007ebcdb0dad6d5be8643a08f040e4fabfc53ec4bc14336a713cfbcc64e2ab13' 
  AND token = 'GjRNzPLK9f3RxBdnwZ4BYxjiiaDJSsB8/xK5LgfpGrA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00115

JSON explain

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