{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "273387437",
    "entityType": "User",
    "nonce": "0x26d9f9494f58531cc4187db9d8c75f44af5e2ce0c51aa238ffd783948d3700f2",
    "signature": "0xa886cc6b6ac29c0b375091324c3306783c954066ed5c56138b8219a9cc321c25632ee306672b1e1c4af7716ef13c8198a773bfd6106e3e8733d6b9f6b50fe48a1c",
    "signer": "0x97eAfE883FbF33a8b75f6f37440caFE5CC452d3f",
    "userId": "849776474"
  }
}