{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "269304",
    "entityType": "User",
    "nonce": "0x6f0ac965ad4525da81e3bbcca834eac89c8d2715847e85f339449cc06ccb63db",
    "signature": "0xcb16edf637d253657b628b12e04dea6efd4c3ae2116d40300ad77295d9ff6e657559cb60d20bc1d2e646026940e3bf50bf6ba09b58922b1447dd3e123145ce481b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}