{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "353032",
    "entityType": "User",
    "nonce": "0x3e8ee26a3f82c87c48d02ec966d04a3c90ae402fae26171703a4b7efa54bf60e",
    "signature": "0x5665cdc3d4be09c601a4da88f03e2aee15b93d09ddd177830c4da0ec8243fbe80bcf6a5e1db25552c266df17b8e93b857bcee2d3c4e1772dcdbca8048a3304e81b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}