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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2a05068f78b0b642f33a86d5bdf38f2cbede6983d63d1237c4d506c938608a5d' 
  AND token = 'hRpbt404Bt4sOTOl3R96iZPGHMQNTC/L/VuVkcVy5Ds=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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