{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "868892842",
    "entityType": "User",
    "nonce": "0x678ed7d09d307d680595ecdee90b360e519e925c9b797145d20c9899092d781b",
    "signature": "0x3b836958feacdbda97f850bab0896e8fadbb2f9bf8beef069c08d2be3237da070a97032072e4ffc440cd85d5ce36c74724d9a16ddc6f5a0df7aa3d9bec12d10a1c",
    "signer": "0x3256Bd2D0B1984E7df4FA525017aD9bA48470760",
    "userId": "51"
  }
}