{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7329a28b3e4e83dc40fd286c122199670cf86af9cf949bd47e972a3f9960f2bb",
    "signature": "0xf3e5ce82361a0e217630332a0dd5f74c01868e0c3ee678f01d409f487e532d8d2cac88237f77f65415777a457d4238de84a457c7922cf042b54871e3f34aa0ff1c",
    "signer": "0x28225d9a0F9Ad37aEd0bd961a40F0d8a9340948E",
    "userId": "200438994"
  }
}