{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "423966084",
    "entityType": "User",
    "nonce": "0xba96d719bac1f63ee84ee0869d1a0bc0ad2987e537d654f1f9a9d0dedb1af16b",
    "signature": "0xb70c2c6844eebd46c1d772e77a8c6fcb3712b28f5384d29e3ee4b8af775973560f31a52831494946f5a9a01360a2514624491fe526718f9fe0e9837fa65ee6bd1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}