{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "742786650",
    "entityType": "User",
    "nonce": "0x65e8aa94c5544b54557d2b09e0cd85f7166cb5cdcfb426ab52cd159bbf49b7ee",
    "signature": "0xea9d394d516a705c578046daef3c2642c62d6d115cb962ad7efaf87e1c25138773b321eaceb97d9f438d65672471cc985b55b14eabc904a992023fccade913081c",
    "signer": "0x7C2169544c0568cB3b210f320356B6A77E891F30",
    "userId": "495616082"
  }
}