{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "111728084",
    "entityType": "User",
    "nonce": "0x0485c77a45491f20837b2b592f78244a70c1f5dbead27e28cf83973caeaa43c2",
    "signature": "0x1148f76e83a0dcf3b620f19e4d0bade47d17af8056e0482dbf994aacb8f6850430d9b9056042647015b507f7478fd5b351e0c94a99413212183ebe025e80aad81c",
    "signer": "0xd708949D0521A856Ca6eB44B4112bAEE59741ADD",
    "userId": "490478463"
  }
}