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SELECT 
  1 
FROM 
  cscart_june_setuplock_keys 
WHERE 
  key_id = 'cc64bce5294f7c4bb940628d7a5445c82952e9fdd6540dc465ebf43efe30be43' 
  AND token = 'oK/kPWuvbm1U3+ngX2SwR7oo6yVq9nCNLqwPEskL+a0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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