{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1665955",
    "entityType": "User",
    "nonce": "0xdadfa3f54722e1d0b1b4e006a1c035a408f0ece4d54f92bed66ee86a777b6039",
    "signature": "0xa5e11a61347cc2df9e06d457c211efae59d9784ad609cf34a2fe66e9e44dee2170570ac499e746a09bf0b597ffe3be75f2beb102594682698b83c37114f296411b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}