{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x46d3224ef8b65240a82846751dddabea0da9efcf2f8e374be664bbf957a69038",
    "signature": "0x3d6dc60eba6fbdbb2d79673507ef6a2cd1a6578160a93ecd3e47fcfcf9e16a4c63b4f6581d2641ed979d04bc16689ae9687156f7267cfbc00b95bd2c22f0ec721c",
    "signer": "0x3CC318BAf3a4B3C8D7802B00d843e5b1A1156836",
    "userId": "329827262"
  }
}