{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "107454",
    "entityType": "User",
    "nonce": "0xbff9b929c50003b3739ddbbf91e05e177d05dedcd3c06c32684b665dc6d3d3b1",
    "signature": "0xacc04fce709cfeb16177a3d0505da1506ada8e82ed2934c3877605278efb18f16eaaafd873b594d371586a10659380389d7f589dc99fabf2ebb24d24d2e7cb2e1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}