{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "60903",
    "entityType": "User",
    "nonce": "0x18c2d74f0e842e8e5943d7207635a841393c6334a0acacde8f62652ad2c61ffd",
    "signature": "0x842c778fe0042f68f8bce48c72a25a1113d4ee976f1336b3269822e2e3e9822e3bda9138c1f7799975c0daddeb7b224dab6ae7cca4f31e4d6c732735414cfbc41b",
    "signer": "0xdA708531501D4f46C162eDBca1D759CB6e7447c4",
    "userId": "985405611"
  }
}