{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1967218",
    "entityType": "User",
    "nonce": "0xd84109e36f29b98fb6b0852f04e6978d83047fd3bfc5dc0008e46d975685f577",
    "signature": "0x36462bc6a5e0920bb279420e2791bb080876202be81f3cbe4325994687f81d5947ba7c35d64d33774d7f91bb8771a7cd19ea26ddf4c15fd7bdc165be727ea2251c",
    "signer": "0x90d627796C9E2071AAd9F8C20f6dCE95587F6d13",
    "userId": "560619378"
  }
}