{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "209777",
    "entityType": "User",
    "nonce": "0x7d0d91ee13ac75d2c5e96734a8442e12e5d2e1e99e70147f8ec6d0b01265a225",
    "signature": "0xb69893ac8ad74c9bc74ce46aa7adc09618761d36b2af2bf07c83baf97d9530956759ce43ca1fdf3ab193e5390dd9d1b3950b4ebd0ce50fdceb514eef4a6bf8231c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}