{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "418590991",
    "entityType": "User",
    "nonce": "0x43a4a291b1d92fb63716d1eb3b5476d1a982dfb518c960fb8b9fc94ac3f23189",
    "signature": "0x347c0848ee20520a3e8ab2f7a489de12bfa4b29708d3891806964ce4f7bc59b1338699584c6cc0a4dd74015be2425b53de751a5f62af84e9cccbdcaa91c7dafe1b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}