{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa22c6e0c288181800563afd9588656ed041b888ea871ec4f28f897dea692bb54",
    "signature": "0xc8b774df29a290ecf7e60b8345054fdc29494267b23b6d06281256dda45661095055e7cfc2ba265c7479e0b37bfefefa5b8b23aad98a3e24cbc821c6cd5dde551b",
    "signer": "0x9886AeF061697C5Fe4ec5Cf4296Ec89d91344947",
    "userId": "895277029"
  }
}