{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "293",
    "entityType": "User",
    "nonce": "0x5a5bfe0aff5174f29d1789a187acead99feccdaa051049bd15dcffd79eb1228f",
    "signature": "0x1d290e2d06262382ca906605ade62cbaeb0b05fe16f318234d836716e17dc90d0771e8a8c12910a415b4193728998aaaae3b7ccb228d52d6b9015ea573b468881b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}