{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "314016",
    "entityType": "User",
    "nonce": "0x0e588e8ad395a60607637cafcd06fb41fb2851de325381a9bff7a408a656a145",
    "signature": "0xb87af4af3eab93e55890e726c18a7192bb24621179bda670d984c716acad84bf73aad932adb4c00552c3d5bc3303cd991b34438d3b63b956f412b3b6cc3b73011b",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}