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SELECT 
  1 
FROM 
  cscart_multi_declock_keys 
WHERE 
  key_id = '5c69eb89c2278b31bb69eb782ecf5bba6d59c14fc9d72f0c5b487ae1bdb47214' 
  AND token = '3gEE5V/SSKi6++2Blr37CBr/SLgKc6/2fV6ixjw01Q8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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