{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "319048",
    "entityType": "User",
    "nonce": "0x4c90b2f638863f1fe7ebe67ed022ba145cadf557362006c217e270bb252b9489",
    "signature": "0xf9b9294c3238da0c04739c61cf2a1ce3a234f094f27ac7de330f5d52798fe3ea11460797da3fa27ee7aa67dea35ae63d017510f9d0b69eb18eeee7d59f1c5a8b1b",
    "signer": "0xAEc4BA229696a4DAe2125cD32943943AaCa0CaF4",
    "userId": "354024696"
  }
}