{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "977818143",
    "entityType": "User",
    "nonce": "0xd048908693eeb4af5f195ab4f0bdfeb0142f52dc91beb0e5a9500e3f9bef6d27",
    "signature": "0xee5db74c3583918fc95a3db33f28e7fede952904d1d008dd7b9b4c4ae9a2834a79f51cbb01a6b322a10b1b0dfb668354206c810b68a904f34cb9cc2347a66f1b1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}