{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "981716494",
    "entityType": "User",
    "nonce": "0x3b4d0b9fbd247365f9e56e740a922fa57381a2b6ae77be14982a5533647d6b9f",
    "signature": "0x58372205aaf70fde8904694a438a283ad86e424d91af9c2d7c074104eb036fd746a8d14bdc378295e1c705ebc13dc6eb203dee8480af68112cf5dd4e358b72161c",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}