{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "42647",
    "entityType": "User",
    "nonce": "0xb2d3ad59c2ff7465d6848c9205a853adce1ab23e582176e170d9f1f003d08f86",
    "signature": "0x6ad961a7f1a2836084559d08729ec4742653eab79bd0930318d5093f6d0b1eb23c4407530cdb23fba8f0103ea1347acfe45ec4eee95ea91e6cd645b6b775c1e11c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}