{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77551267",
    "entityType": "User",
    "nonce": "0x07793a1ea04f826587d800d58e7008d3508bd0c2dcb1f233359ea065c49c51d4",
    "signature": "0xf878ae377505411faa3ead479d4721235a5bcae021e877f91d7715fe388dfbfd6afc5338a33a55e7e1e7ff982b4ca6c64ba49f7d868621d8299f7d55e443149e1c",
    "signer": "0xa0c0216b7895a5D5d1C6bA31e0c046Fa7dc5B88E",
    "userId": "252885271"
  }
}