{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "161353174",
    "entityType": "User",
    "nonce": "0x187ab2ddaa4db89cc124b551c32deb7e8737401844f18e8044de3ec53a51e178",
    "signature": "0xc85b522ff8ae187e49b5246aacbf834ff42cf4b632530b51d8d1478729a339fb17b9f26a26ae0a91f5e8534a662b355795b56fa6f220878ca7fa8af0b4ed1cb71c",
    "signer": "0x9b6bD4505e2bCfA88acc8680F463a96DAddf1d0d",
    "userId": "213208842"
  }
}