{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "382030",
    "entityType": "User",
    "nonce": "0xb7ef14ef84804fd82044e8ac1a6d5be87f7c0e564feec477765cb89d30e66475",
    "signature": "0xd8920b17fc4136104509759395f32c4b4e5062348ef557bdf95238c7e964739c18e33c6a1975392f1e3830ed9383fe97803a8d2b2e567cb26d3a167d75f4a25e1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}