{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "152605886",
    "entityType": "User",
    "nonce": "0x1ff6db6323aa53167acee25770a1acf384ded32a7b4da0c63da838c30e12930b",
    "signature": "0x402735e7c8e3900d2e6754b679fb5da053aef35c56f54282dc749841c44e590855fd2b462573141cbe035852d02f6bb94ce402f6b1d54bc89cb039d634e1f9f11b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}