{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "348740",
    "entityType": "User",
    "nonce": "0x9467650ba3fbe9a10a25539da182b42cb1e01fd0eb1d3b9cd4624269d1088a4b",
    "signature": "0x816f40ca142eb06a8eb45322d78a8e6d9ccb24e7893b320552aea18d0341d8f13a2518190dc713f7eeac64a43f0f56d507796ecef5cd10547d8fbd00e1f0c9251b",
    "signer": "0xF08935327AeC6306C8d0eb92999567e5496848C9",
    "userId": "989073793"
  }
}