{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "90855",
    "entityType": "User",
    "nonce": "0xc9b5adae2202b931ebaedaf8417ec3f68ad0f08f6c9768694668987c324b5063",
    "signature": "0x45c0f3f1a8a3ee44b4bb3d258ca8fa7139db51b030d795b2adab95043bcf46d979d6170c56576e0be5c7315486a49ab3e4aae9c228c6333ffe82fa707efbbb301b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}