{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc2434eb138c9f9c9456068db57920e5a5cdb9b385198abc06df1b3bc6c250b09",
    "signature": "0x7bc3238b61265516be45cddb2929954893d496fa0215848b56df73d17c663d8311a28f827e1772e5bf6e9bb984b0ce47203aff8d40cfe211be5b8a530a971a1f1b",
    "signer": "0x11DF686Db3Be1Af0d13c5243B31f5a1A34969a9D",
    "userId": "503460339"
  }
}