{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "781665402",
    "entityType": "User",
    "nonce": "0x1d59588b939ae5aebafe683ff903e1c6265dfeb87c1b87e44ecb849c46e4bbd3",
    "signature": "0xc2cc79c7c272f59098169c28ba3780202e32135b2b92429163050a08c16c22a70b10ef7451e5c62e585606aec97543f2e7f62df15019fa669fdebf42c00a1a011b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}