{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "871265248",
    "entityType": "User",
    "nonce": "0x245ca5074db3f2b7825adb1b6273ba64ef72ccd155c31010be3d21bc76daf1b2",
    "signature": "0xd0c54dd4aa1275165e6bfdd5a25f63b514a7179f97bad04caed38c74a03ae5d3205c9952760cce5ff8c245ef48d6d422bd1152edb0e494f39c9236d7c555acfe1b",
    "signer": "0xb7C7a8D9d12EBd1Cd438cB065E97280E6D7e912A",
    "userId": "984691913"
  }
}