{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "173906",
    "entityType": "User",
    "nonce": "0xb8dcde5b06934332de9b4444261d1cc929a69c2a5319c1be58bfb78732cf8854",
    "signature": "0xbdc8f2a0ed10489e050d89377351a2290dfe19e3a02b7f4da930b13f3e48a6437cf76d02f6744077bda39551636c885ff333b54fa20408caff4bd3ed5f01cb001c",
    "signer": "0x2BD0c2111290EB20B2843e8b1c0f25aA5cd52a6f",
    "userId": "618242981"
  }
}