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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '5bade1390cc679dd694b00619d5aef4e271d373b78559379858e3d35b0160b44' 
  AND token = 'vFugYH0t4WbPXyxNyVKIg4d/B7rTWM+NFu2TpFIuIEM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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