{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "335904",
    "entityType": "User",
    "nonce": "0x9679dc1a22fff41ad5b3fdbf3b4a37be5717b61766bb05d55618eb80d0e6605d",
    "signature": "0xaf2646b476d0be797d5d2ddfb1a14c0c130205c8dfd28f999db848e066d1e6172aa99b2f406c0f3c5228e3949c4ea3e9046d078667f6abc7becaa07c817453281c",
    "signer": "0x90d627796C9E2071AAd9F8C20f6dCE95587F6d13",
    "userId": "560619378"
  }
}