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SELECT 
  1 
FROM 
  cscart_june_setuplock_keys 
WHERE 
  key_id = 'dfa8053891e8f8da388e330519897cd4b4638295340c8cdc8088124ef8150fee' 
  AND token = 'sW6cr8uH/O0TlIcRl7IyhtgDJ8/4ciwIcp1iG7JWcpk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

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