{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x69b017ce4e60a7ff8584ab42e96798fc201ed35a62d89e33df5e7a8135905f66",
    "signature": "0x5a11ba0d17acf4603ea7bbd28d4571abf44096b3a8c23630e737f291ad24c2c90a9b63c03ca4e475ffc85ac32388d8b10145be447178ccf636c569fd9003f3011b",
    "signer": "0x24844077bE6bb825c0548F36B4EFA030d05Ee1CD",
    "userId": "601282125"
  }
}