{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "910778788",
    "entityType": "User",
    "nonce": "0xec80a160bb48dce4d6dde622565f2a3cbb22ec454d20c5d02b6331f0118b0f3a",
    "signature": "0x10ccddd8cdc17374fec8c85155737b63805578e12adb408123b09b14bfc551e27cbce7fed9b728a6ff1866c31537ecbd6636032520cb4aaad12fecd11f67d1f51c",
    "signer": "0x29aF37341ECc995FDD7C5fd1757A5a695244AADC",
    "userId": "113302290"
  }
}