{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "299279",
    "entityType": "User",
    "nonce": "0x25be71940186807fd01ba1d8e340b4f1f0668f8468411113facb97dc20d5957a",
    "signature": "0xe25f21a2ffa10b1a128bb878558e70a3f1d2d02784b61b78131cfc3850c309c175299d61e51bea5e319bee5b02fac89df4a966c82c31cb5abac4beadd55fc69c1c",
    "signer": "0xc97A6025Ad8c7Ba1a35Ef7E3A3b88ABc8b2013BF",
    "userId": "666092734"
  }
}