{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x67c94bb3ac08d9b5a976de64196d7723ffa5fd4e647da7a128d7a8279d2a807e",
    "signature": "0xef4c29ede1a47dff5faa938ea4a22249c0e5fc34355c495bcfb86ae8312672476e8413f973e7b5ab148d1769f07c0f6d84fe4c69930ccd223b5b81e8fbca389b1b",
    "signer": "0x8E8cA80e0b8AE332b3DFA9906476dfeDCB871ed0",
    "userId": "382958483"
  }
}