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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7cd582c517ff7b2099fa14a418ac72111c7369f0b5352d24c6ced8fd48c2aa4a' 
  AND token = 'K1R6ie8SJ0S1y+uzNkPUMD/4NWQOfFPuSaJhyuBRLnw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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