{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "115138",
    "entityType": "User",
    "nonce": "0xab1a541f261f7595493c1807ceb0e3c89d84a88e220a7ceb756d0b97686c16c1",
    "signature": "0xdee0dbf277934b4e4af8305323c3c673626ce623b49dc749e91e1e16e83e3a85355ec64b351a0ab2a4d7ed1da01dfe786acb961b6fe4cf91836476360dcff6981c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}