{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "7155",
    "entityType": "User",
    "nonce": "0xb71e42ab0877778d6225e8c6a61e4fcdafcc7067e2b177f0cd3230ff094239a9",
    "signature": "0x1511addc7ce627727dcb6bc4c2f92e7ffc3e33123ef8a6970785605caf23e586553c86163f8eb1232ca7e8be1231ae5c9ffb812610ee3b02b9bb049150f955121c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}