{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "111840",
    "entityType": "User",
    "nonce": "0x7acba7867e798a9e51779dcba57818ec86265f9b2fc3ad4560d2de660a46d650",
    "signature": "0xb0723bea43a6a035238174509dd016c0c1eb293e7745de129416d02e648655c76b4a9a276f6ce212826686873527ad4aa21e6a4f5fdf494fa10c14bc852d39d91c",
    "signer": "0x4df845f0a31d75ecdeF1019e502eCEBCb209BE06",
    "userId": "742768859"
  }
}