{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1224",
    "entityType": "User",
    "nonce": "0x3d887ec8534cbc88f7ffe729f332a5e3e05475921d690387a1637a91268a733c",
    "signature": "0xe00e4d125c7ddd47ca5fa05370e110d5f00d82080673c42655cf84d20c9206db6aac31e5e473739c9446f99e7b38f9b2137f78d73b8489daff64bd6e2fd39fdc1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}