{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "311859068",
    "entityType": "User",
    "nonce": "0x159c62d4c8b94b74c0e3b43f810da31421906d1203e50119524d11369a411ac0",
    "signature": "0x03b25733622bc6c2905ef445ccf91ab3a2495c9354513c42cf85b81f62eb854e40b97e536a8763ad613152bbf8bedf96a0bb953d83828245dc70da089e2c62e01b",
    "signer": "0xdEc12eC3F7972dB51907501aF18eb17FBa37a413",
    "userId": "211416595"
  }
}