{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x189cbf810532fb20385516c1c8f6d2d4ca5c68c9cbe22bff15a4243358f76f24",
    "signature": "0x6efabb32d15575e6d150e7cb3d4b5b51f0b2dc2bdace075383e32bef9532c7d124b9f5c6b1433cf8535dd24508bf50c32dcad74a828fc944a62ccb0797fafa7f1b",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}