{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xaa2594bc68a784613b1c1aaeedeba53b9322ac3e6baf74a09539513d31511e88",
    "signature": "0x01fcbe4f56741ab056a9d57b5a2cbbdfc53519833a0afe25613338f9615fd11b35a8320f23782d641f7fa7ec4f78ff3c76b93c9c36920cd43938ded8dc402ff31b",
    "signer": "0x6Ee7842A432b779E1Bf51F27B824fe86161cee6c",
    "userId": "408407824"
  }
}