{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "380622",
    "entityType": "User",
    "nonce": "0x4dd94da2456cedbf7c21caa61ae7159d0be1bef9064f6ebc3d564154600ddbc1",
    "signature": "0x121aff9bfb0df2f1d9882efbb4560c6dfaf25f35ee9cc89ac6ecb400558af900386655b2a17c75cbd625821c8abc1fcb162753f5a32d979eb27f1d46ab15c2691b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}