{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "163171",
    "entityType": "User",
    "nonce": "0x1c27cb087a6c6c348978252436996e8ee7752cf9ffadd72c21aa648f81497e62",
    "signature": "0xf3ece97e043cdc4e72ddb7a87cdf247c11232fac4e717853d8080b1bc79a2412192a585d641a8cffff28cc997bac072d5c84766dca55a6984f3c865c6b2e16111c",
    "signer": "0x742Fff9be20F80Ce7285c8Ab12B9018Ef3Cf14F0",
    "userId": "111467392"
  }
}