{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "787263",
    "entityType": "User",
    "nonce": "0xe10830ca92a9603cf6381eb09334189813d7292e0a30aa15c7002d57270f9898",
    "signature": "0xfcb4c4fdcb391f3dd7881d0cbab3de019a794515012d2bc26d3a5eb63112588b7d838ba1e6a84e6bbb9cec022bc39f74c82f556b9b1c496eec7edbea1e66a4a01b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}