{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "203070",
    "entityType": "User",
    "nonce": "0x028267c5ee1feecf02c695caef075542900c1420bf7562755a0f52e34a7af351",
    "signature": "0xf9f35a04ebf7c8b41a035a151add815ef1815121952fa542478a7ae65cb600da7e467d46d348eed8cba2514fb126e3e6440aa49d0a706db9fd96319a50ab55031c",
    "signer": "0x90d627796C9E2071AAd9F8C20f6dCE95587F6d13",
    "userId": "560619378"
  }
}