{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "107347200",
    "entityType": "User",
    "nonce": "0xcd57bc21be2ca7977b22e069c2f096ffc1443451bd4daabacbe0e7024b92b977",
    "signature": "0x2698614a1dc5f478204eea261287640855893416d2f3447f9194df8b9375f1a577dc40cd23d6bf7f0f20b34cc3a64d9f13acf767d6bed1b1cf106fb2712eda901c",
    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "20"
  }
}