{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xebff27f6b6b9c32310031805dfb56ccdf09a265ad6c8f225d5045ea2d5ebeca2",
    "signature": "0xab04b6c835e92e11103eefc43364cee86791c9c93b087592fbfd699e46c12e001ef98c0ede92f4e6021788db349b7aa3035472d1d015e4e997f0896ce638855f1b",
    "signer": "0x3CcDf5580dCb03a0425f7DCe6a10B25B4Cf46DaA",
    "userId": "279730760"
  }
}