{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "906561207",
    "entityType": "User",
    "nonce": "0x9730e78262eb1c20111a4da65c8125e57ed253bf805f3675d535815ae47d33f6",
    "signature": "0x237119ce34b467e6807a06b39e6f9dfb18318989076ab26c7476cb2f9ecbbfde5f89f204129a763028d9302f8c4d078369a737e46d9c33f931977ffca7d1eca31c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}