{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28155",
    "entityType": "User",
    "nonce": "0x3da1de9a61f346d26ab1179f0442d5f54b0f081230ff44c721cfe9f871d69f23",
    "signature": "0x94b410c417183ebc5160efc5b57bfc7b887c0a543d8978310974f6171195b61d6fdabb7cce2f789b6f55ac04917cf7822370d416043b72d2fc9111a62dfcfabf1c",
    "signer": "0x1472Fec023A32bFDB4d9d8dD1C920b2DD601638F",
    "userId": "452206810"
  }
}