{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3ecde119a4386c207bd201bca09d62275513d2586b275b9b7c9d87e882c28c15",
    "signature": "0x2c79a57b1ef9b1c073526eda4c85efe1deec3f1ffb8fca775ae0df498ae3f7802529ed3ed3c1c57d67fcf6dfb04905d4e28afa6e38dddf30ad2acf44cf6632061b",
    "signer": "0xe58F2D8128273F34a65a7d2cA9D026e70185D1AF",
    "userId": "391333792"
  }
}