{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "709633854",
    "entityType": "User",
    "nonce": "0x469e61f738597eb6fcc192bc0b7bf4a69b1ca5e00092c68d00a2748d29a43bd4",
    "signature": "0x0c3cc4c6f16bd0276a6404057487095f1f47c946461cec59565d5c47a88b639a5835c330da8408a913981b0b7aacd723f3cf5f33e0b4ffc79d17e42b5bcad5d21b",
    "signer": "0xE0EaB915C3153F4a2DF5C6e7b8D58dAc829Fbf2f",
    "userId": "774741623"
  }
}