{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "374065034",
    "entityType": "User",
    "nonce": "0x052582014257c736a991963594dcd34b725454f88fe56838f6ba78e52dc1bbb3",
    "signature": "0xaf4a73a016c598e3550950ba0aa04c1fbc70dc3b65219c93e5080b4bb30209762d3ee44da99bbe40194486022ca05901c3f1a876a4d95d580fe3f4597f7a73611b",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}