{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6a8b4d1db7722a452133ee30d79ee6961825a90df02a722a1a18ab41cae6c08a",
    "signature": "0xeedb5a2ead50a5e92d13ceefecea2068f51daaa89659e9e4640faf63e378ada83f64cf54fa08bf9a1967b710a8fc78f10f3f2a95246d2d46058b8ffc03362d811b",
    "signer": "0xea5D672007F4615df066996Fa256301441396CAC",
    "userId": "777019743"
  }
}