{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0x125be82aa816b2ffb0cc244a4a0c1ff0d43ec82b62cfd69283b0d9dfc00e5596",
    "signature": "0x50834e340148d89d4a114e7fc2bab210cdb18fa1c361843f3641e24a80e09a5e7f7e43fb4f6309f05772425040b664dafd466a875d71e3b9e194878faec6ca091c",
    "signer": "0x032353067E6A79e4D3c78a727050A3CAb9964e5D",
    "userId": "834784522"
  }
}