{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "981716494",
    "entityType": "User",
    "nonce": "0xe61f29cffec842588432d9186a2fea11f7a5e18d0d621b9549114e2e6dfc6bf9",
    "signature": "0xb83ff9e10e867569e1fbfdcd2f29f1c7d3c07413b1dbb9d93fc8a2e56c0f25ce67775120c51b144b1124328646955393e1495fc3dba51f36599dd56452b43ead1c",
    "signer": "0x4D1242D0da3f49195E59794290Cbfd833cCD04FF",
    "userId": "627952347"
  }
}