{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "480962013",
    "entityType": "User",
    "nonce": "0xa5697b6a8f0a881347ba148c5d33cfd3ab67679fc11e8f052198c3d5e8174b90",
    "signature": "0x6fd442947de2b2b49abd9317880da324f1b4b0d541d4e11432bb476f7799f4961f8166ffbcb39563a46a7a3840936df30120a834214dfca4306d9324d1c37e381c",
    "signer": "0x2BD0c2111290EB20B2843e8b1c0f25aA5cd52a6f",
    "userId": "618242981"
  }
}