{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "693716306",
    "entityType": "User",
    "nonce": "0xc853e4dea1d5a59f7e1f005e1bf0c202050d44c7aac58c311b4a397c563059aa",
    "signature": "0x00b76a5aaed8d7fc949394787d29861adf149d6a80cff8a4a5608352af3f4e2607557385808b3bd785f8c518c2d744a1340a7d35e4ebc5f667def5da430d13591c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}