{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "329099",
    "entityType": "User",
    "nonce": "0x6639b915021ba8a6aece02b78e9411453bf4f32ea95c2d32a9ddf76824b6ea58",
    "signature": "0xb1bb2e26e17e98bfb02438073654d168d2fbe4833a2d453339e3e278bf4e5d78222454586d13eeba1f5b048290a8a17cdbab2cde061fb7ad2cd18a967b13d8de1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}