{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "13456",
    "entityType": "User",
    "nonce": "0xbf8650df31e43cd4d929982467b2553f3a9be66686480d7d327775c519fe3226",
    "signature": "0x379dc72786eb6fc8a708ff6656f6f7a46fbbccec774dc722cad03eaa7bd31ba25e5cebf372eb107db627caf62fdf2fe452952a61125d0eae424d82c89640556f1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}