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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '8560a3b89c0ba010d39bd801495a4f7d276676f3874b60003e850e73ab4d263b' 
  AND token = 'Ph/pBgO9MmHWAqZvmRk6hCpLi/y7y6ZZxNaw5mf6n1c=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00016

JSON explain

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