{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1730737",
    "entityType": "User",
    "nonce": "0x6f9cb0a443f128679ec0230fa6d8455726112232f1df3291740d08c42a94531b",
    "signature": "0x1e3ed67c91efc6e97b652bf22fdc80417107ebcd4739da78af287134eafed1f351ef914f47221e737deae040078fd6110039feeac497970aaa81925c596a1bc21c",
    "signer": "0x68fDbE36b6F72fd163e854c4AbA30632a73fabee",
    "userId": "99347290"
  }
}