{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "68907",
    "entityType": "User",
    "nonce": "0x607ac4cd4c2722734bedc012d8837c82a51d27f05f2aac08e4fa5a498fe0de09",
    "signature": "0x734bbd1a8284b99bbc1d005d3219765fb40bc987ee020f12d34168bb776bced46bb420026559d010943d059c10dd91f1e31bcd088b4c0cf9217df339b2a493061c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}