{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x954c776c2502c4342834a2d1e7ddc2446addd0ac5e559a008566352d000b906d",
    "signature": "0x276b71e2e445c8d534298df056b22836adab2763aea4a45ada41fbb18555bc741b79919eb145c43fab3b11c7dcbaada0bd2f8f027b049657935bfcaff70257021b",
    "signer": "0xbBe5B972728DFD7D6906b8E7417467E9a208A3c9",
    "userId": "129360359"
  }
}