{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "806873848",
    "entityType": "User",
    "nonce": "0x43bbd60537f6c63aa992278ccc04773d21968da19207998aa67fe1ad29392e3b",
    "signature": "0x383f4434fc0cbdfbf059b0acd193b1de5ea1de1612a77b092c3c136757db6ed909720aec93fddfe16c9d0d37c47997bd9435bd1a016bce579f6dd84a937b14381c",
    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
    "userId": "735980234"
  }
}