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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '132a234fa25264530dffb8e93653bc200973cfd25d34b646fd2232a15fd70070' 
  AND token = 'gTtXee09eL2bq136kQp4WPaJ0NB4pW5BndQNC2Cl3N0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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