{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1455",
    "entityType": "User",
    "nonce": "0x7b3c9907cf63eaf97de930f36b42a52a42a8b84250b99e216b051e07e212b4d8",
    "signature": "0xf9252818aeca5a8b16991eb4af8616d896529ef3c931561941eec678667055151593d8059562060beb9f869f4050b8cb1cf4119b2d5e812a07c90dba0e2e2ae81c",
    "signer": "0xC35123bF05ca0B3A7B333c53E47bcd9f9DA864d4",
    "userId": "33896318"
  }
}