{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1686476",
    "entityType": "User",
    "nonce": "0x13a701c2b0eacf2fe58fb1251e8d11a84465c2bad3498746ae91d8343f7c6a59",
    "signature": "0x19395fc7510d7682010db81e46b1de48bc2bf2ca4c02dd952ef3566d2339cc073f17c7c835191c66f72565898fa5a6a39c469b19a543737307287a711cfa4f981c",
    "signer": "0x229809a4b9B3B432eb2c65d5Ea6c9Eb1E6aA348d",
    "userId": "823446"
  }
}