{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb5e3dffb889931c04a920126a55f1893146a92129c56b772c7334f0e2912369a",
    "signature": "0x30e572b287cbf7037d5d54f58c5fbfd50d509ba2073cb818b18e691da60bf0f23a1217c7fa8fb3c712b2b769b32c3be8e6da8150669de4ff494de3aed660be421b",
    "signer": "0x115FdE94990D7AAb2784D373eBCEbc3cF1014bAa",
    "userId": "365503940"
  }
}