{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1894",
    "entityType": "User",
    "nonce": "0x9d4eb41cf5ea5b6e9f774ba3b48bdf49fdb88ecc3d367162047ee1139e2a7efa",
    "signature": "0x4e3999f06cb52ede09b8f5f7524253b329d7b11e6eabb0bbefe4de69b70f8dca70e305e81a1b03b4a94644f68d682ee66a13e9a263594f3c2ab9e8569b91e8421b",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}