{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "157716",
    "entityType": "User",
    "nonce": "0xb0d89bfd0c12cdb87c06d717e3a245dddcf112677debbe120db614d3ecae89ec",
    "signature": "0x4f5d9c4928815e8f17715b41adf9127b3f10d6f3ab951fcc2304d73243fe3a397e166b25f969433b7496cea79b394c03b967e0e6da472cc0e559e6ba4d9d1d291b",
    "signer": "0x766Ba5816f1Cbcd9649d3b301b8F423CFF252fdb",
    "userId": "758745"
  }
}