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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1135a14014a6c1187ec9517c6acbde9a8eca9e190e3b63aadf01dc2891c4be58' 
  AND token = '7hXtyin1/ZgOmZQ7skwKjCxe2vQYhoQh39tTnKoOa1k=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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