{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "81267391",
    "entityType": "User",
    "nonce": "0xd46fc2dd1d3d493545c4d577e79ce6a2a10a88cdaf50200e1a7930290ec21f55",
    "signature": "0xa2b8818c2bf608b6dff252bf468924c9b0309c99944c42643ece8a45231d900d0fbebd3d676eb80eb903d2f68d1f31ba9f74fee6f4d02b9b2af8e1deeb232dec1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}