{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18192",
    "entityType": "User",
    "nonce": "0xa557e9e81de75d818d4b0c3512f2be51c3f55cfe2766c1d4b57e63aeccbf014a",
    "signature": "0xbfc954a52cefbd09851244385cd9f9d2325b3dea0515797a04e7ef965bd5a224297a97e845f5924f603615e143442442cc85e6f34fd4aee35a72c5203d11279f1b",
    "signer": "0x81f60DEAd0cdA833Ad17fe7Ddd37b36E62630205",
    "userId": "132087202"
  }
}