{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "310686",
    "entityType": "User",
    "nonce": "0xaf03af507ec9ca99062249d11ff33525bbc88e8998fdabf4e8433825dbd0cc3b",
    "signature": "0x149223d741e240fa0197dd28a1f9b42c13ba205657534590b22b8647c0b3937b16d4c1954d7cbf316790d9c4e0aba5254d14df7daf3f71b8e5258511682235b01b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}