{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe2c9933e5d5e0cbc04840d2c22f1a1a002127bf4e6acc6e19b3f089617ed247c",
    "signature": "0xb1f56a360311cdac8d346f8b8807fb64c3b8931e9f12f6eb3a8c2dc36731a0c6267e94e513ed56f51bfefa39a8503a5325749e519284d247078723c5ca250e3d1b",
    "signer": "0x0DbA57Df0116A28Fa0F7130EFD8546C93b653078",
    "userId": "15804435"
  }
}