{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "304316",
    "entityType": "User",
    "nonce": "0xfa999b326c72eba5da38728e9ad59fa51ebeee9c0df56dd26df7ff94f0d3b03a",
    "signature": "0x17ae9d5186defcd93150c75f1bad22ba71593d1ebf763c80aac70d45da8a8cf6177ac646e7fc4b38f6b12ef5793d9c0891c753bcdde83960aa7b69c36146ad391b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}