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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5d79a3cffe62abe59a919567a77ba0066889905abc83c96eda56c2355491691b' 
  AND token = 'eqaR3zC6RoIBYq33RMF2RyxehZHMSF56WL4aAXO89UQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00443

JSON explain

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