{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "406395",
    "entityType": "User",
    "nonce": "0xe6d2461f990c5ef9716d17ca0d4173cb5053424d4fbfb9e81704fba889b489f7",
    "signature": "0x6564ce8b90776d47f22cf549280b4607cb6fea9e14bcfdf198a49401c9fd90342312fe9128db17073f9ea0574360f4b9dbfd232c8a03253d78b5c4e021f34ef61c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}