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SELECT 
  1 
FROM 
  cscart_june_setuplock_keys 
WHERE 
  key_id = 'c085bea215ed7b3fc61dda7a063c48fc60e2a5d7a31ef6f31065746ff1730307' 
  AND token = 'HCamM6X5hafoIDmsrlf2Z2QaK79LHVDp0gi/IE9s6ks=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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