{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5d5d7fb0932cc5bc77df1ff0d501392ed1833008b7fcb3830d36e4f1cece7842",
    "signature": "0x1be40f61591a31f5d887dc1571a6a27f41583461aaca0e3ab7a0aefda64955f23e9eab720710c6527970c4e124bf2940f34a9b1c5c5892c6ab47ed61efbd53411c",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}