{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "397196",
    "entityType": "User",
    "nonce": "0x8445b41fce753f1bf4a7b79bdfac63b31a0441d19956ecba238d5d92aad9cb51",
    "signature": "0x1aed697b868b4c3ef756495360c4716727d0a02763cb20fc17941a70dd9f9998200b63194819b933f8d329214908fd448d4203879fda03d1fa174547ac14ca741c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}