{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "296813",
    "entityType": "User",
    "nonce": "0xbbd501a751d1b2559a5f717f9b5566ad143d0ee41fa722600fc67bddc5a9385c",
    "signature": "0x1e97208bdf00d493408883a5b7cf57cd4a5aa7e10e95b92121ef3a72ab89f57c5f2b9b6ae064d3040da6d64d8646f429ba506962e8d34b407dfda48a2ba8a6d11b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}