{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xfcf3dc470241abfb1b9fc222cb5860928d2883d9f13e1244cafa386b380b67c8",
    "signature": "0x825614126a19e8f64cbe3cee84162f9cf73af363a03ab988b3d0afd59a85447e2c0f6a1703ef83dc04ef9cb4c61cb8791575e9d1313503c62c2556c589146f2c1b",
    "signer": "0x493DB9C76F0718A317922Cb57A06d11e75b8c0f3",
    "userId": "343373586"
  }
}