{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "442595505",
    "entityType": "User",
    "nonce": "0x1a026582c8630cb7a297d5e949e30f542e23a234d83846331cb5e4dc941f77b3",
    "signature": "0x8433449341e5723d3ff4a88a54357ea529db02324062e0389dbbf464632b66e875c5cc9f9ce15749d0f621d83cbf1bee21699e1fae2cdd15e94e35397c8da07a1b",
    "signer": "0x7485DFa6dD3242CF70f4eC6EcFebD9Be63f48c5f",
    "userId": "527928318"
  }
}