{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "115871",
    "entityType": "User",
    "nonce": "0x6f1044b3595d47679a17e10773bede5ee62566eb3bfb9f1a1814768b36c7c893",
    "signature": "0x7376932e5cc69683b84544fa26eff4b660d367145218b45f04f12ed8230ded801b6c1b85e8848336d30dc01d60ccd2979f9b265d187c6d2eee018dc21d9cddde1b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}