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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'cedbf1425558bc58a834cfb91906d08abbe6fca09749dcda8a1f9e856b36ce10' 
  AND token = 'v9c0R8b/IIK5sq0/RZb+M/3W9oJ+zE3m8WoPffWADAU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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