{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0eb1eda635d1da9d385997271864f1e3fec9dd3eee41c29536c52b0542039e9b",
    "signature": "0x834e7d9baa1a8f29c1bcc492a10832226b48f066416c3efa364b3af45a9c2a4b4ef7d12852cffb8e5e0450d8f679da74fc23b5f15971f8fd116f8c9a660dbbba1b",
    "signer": "0xf797f02D186eBb3D55DE736700BBEF00e8fCcEEb",
    "userId": "512650949"
  }
}