{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18192",
    "entityType": "User",
    "nonce": "0xc665213d0f781aea6fdc720ea91e92a0b3c7a3e7445a00b570c9701d2d90172e",
    "signature": "0x223c29db1e133dae04bf6fca2b2887aa90b2158af693490fc1a9baa3c2d9712703e140ecacbcf31c0f2ef815f8a01938f3faa5c13651d061f93bad40baac62d41c",
    "signer": "0x7a78569646ADa00a4d555F20fA48e9cDb9ef14F5",
    "userId": "333304008"
  }
}