The keys in objects objects need to be properly encoded strings strings:
{
"1" : {
"name": "John Doe",
"birthYear": "1990",
"reqion": "USA",
"phone": "604789577"
},
"2" : {
"name": "Jose Dirack",
"birthYear": "1970",
"reqion": "Europe",
"phone": "768789577"
}
}
There was also a typo with the separating commas.
lang-php