{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "125737",
    "entityType": "User",
    "nonce": "0x20ccd13786680142af34a98a5eb887546c8a2eb86fd70e5f0dcf83c5e92a6d31",
    "signature": "0xab2c88e1fd9c980d80721462855a93b29d9df516e577011a78c2f7f6b11b25f65f5c659ebb1f3b83ab0888e955afce393aceb99770a4e0eb7c7763d7243318d91b",
    "signer": "0xdEc12eC3F7972dB51907501aF18eb17FBa37a413",
    "userId": "211416595"
  }
}