{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x494992691947eb32e67ffba46b8d81b4645d2a87f91cf01d61aa9b4f6ba82506",
    "signature": "0xd9ccaa6afbae0369f86f807cbbbbb2e0974ca19e5a94db57a0b005f64657eafd09de1e503ee15df9af245eb1732dec177a9c0553dcee3883a76a9d5cd196b3731c",
    "signer": "0xF26FB6F97a7df5f0ad36b29CAC328d0345479954",
    "userId": "256124519"
  }
}