{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "962089329",
    "entityType": "User",
    "nonce": "0x3475817d198c81d43985ad16927d61c70731e08e8367032c2396798bc5b9bbb0",
    "signature": "0xae0906ed0160a8b7d9e2c6bcb1101006976dcda02e16c7d7acac6ce1bac00fee48c2c925fa71e65a198f653ff4a2e4c2590ffa19a85275d06af07e7225712e721b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}