{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "105562689",
    "entityType": "User",
    "nonce": "0x409a6aeca737888c1edb13964782a9e25d05963f198a0a7383c8f7a3d10e00fc",
    "signature": "0x75449260dadee1100f22c85ed0520fd067ac296d32d87ec638b867930ecf2f1d3be086f42a8f7b51e85de2b389c770242a1fdbc3a7db78af6d8e634fe0327d831c",
    "signer": "0x20690bD900B04126EBFAF3620E46F1645188CD62",
    "userId": "16326"
  }
}