{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9f3c754f7d377c0845488e0dbd37c98492ffde6c1c73f5355ae0010c926fc9cf",
    "signature": "0x87ae214bbd04e1bf1a7ab5f72c95da8cb8c0bf4d0330e8ac74058d521d8b015d7e1f4b21fc440944ff1af7e753df4e4820d6db1038c7077299e08db32ab80d951b",
    "signer": "0xE94684122dBe69915AC1bB3539D9C8b7e9ED3B91",
    "userId": "827843958"
  }
}