{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "560419743",
    "entityType": "User",
    "nonce": "0x2ed5e8e8b0b5e98f3c98db96b659bc3f3202c3cdbe1a97a72c0f2ec5fc7f47c8",
    "signature": "0xe007bb08e26f787dd51200f883d5f438969d07db2fa99bf0d960f7500819eb4c03bb038b873cd6985ab83f19be6de990936fda529bd1f09d118e79e9788f1a5a1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}