{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "923900750",
    "entityType": "User",
    "nonce": "0xa502d32e79b585a427ea1e4783ccab26af0cd8bb1cd1108244201665021a2286",
    "signature": "0x469b21285c06ff5b54197c9d54985f9ea4596a09a50c7c4f8af9b23f8bd160990f5b4e38ca0cac5973d0ba5d768b863c7c8b3e784b053638fab37719da15a14f1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}