{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16748",
    "entityType": "User",
    "nonce": "0xb13aba25360773e2c473ccd5a17ccd86ee4658ff26267f9ac6aec6e9382a7b6b",
    "signature": "0x187355a61a5785502bd4dd769f84e1eda553082ff57e2c3f3e4db0c88b2435c2696f94617b63e8c291691e24d66412a448ba26d641548eb2032eddef43ddee311b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}