{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0x31c341041c186b417013d0f485b6ff5ff46978de108f1023f11fdd935489182d",
    "signature": "0x8fcb21595a2b3e46922c613a51ebf59c1323efb148c08522c9ab3c9e9cbb0e072521a508d019019c4e36da5b3807342f6a49bada703b5aa109d79b470177be0c1c",
    "signer": "0xfa0b7c5C31eBA7622AfE516eb7b8aD45EFB4BD28",
    "userId": "734513560"
  }
}