{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "489026160",
    "entityType": "User",
    "nonce": "0x467755a1857ac44a03b37aadd471cdc6addc172326b73a322f7d6a9ba78db12b",
    "signature": "0x950e3df00b8172502dcaf95f74509fc37e303e42b349536245cac889f4d870a26e790e817a76f7d718d9851400c78c30a4e7e7cdc1feaf8e4b7cb3b7d14801c61b",
    "signer": "0x2a14233e1f50922EA23fb817931968707B6A04c0",
    "userId": "727256442"
  }
}