{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "394457952",
    "entityType": "User",
    "nonce": "0x7bf29e9c5c3300a46726c22c1c7951a892d830b213eb25335a9a6c369c8d393a",
    "signature": "0x2e988a17ee23b1b8478eb1b75348946590ff12b20ac43b34698842c31aa5788c53825ba65ad778a44803c896537551d3e58a720b905398859bb1d146a50ab6d91b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}