{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc454d65bb1f93c6e82ee9818c0744da97f81d9c8730578bc4ff6fa1f92655549",
    "signature": "0x32f6b0c7351248e5398d3ca29f03cbe7351d7acf1ca6bdd45a2ca6dbc23c91d16a5b2671f68a0c8c1cb8518555ddc4263715e9bd3a3e96fe6c71ff1d1ce8786f1b",
    "signer": "0x6F2E759f467c4421504962B1F3fa5C68BD5DaaBD",
    "userId": "589362852"
  }
}