{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "56560",
    "entityType": "User",
    "nonce": "0xfdbe0ad0bceaeac847401816947b1611f3119344378d5b7fb29218298352b474",
    "signature": "0xefb62b1bbdf49199f59d0ebd3755ed9e4b548e812733ef87bd52db47adccb4860432c98d3cd55b51373e63f7b3761176de8c6d2a1600dea720361ef51b1739981c",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}