{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "10038",
    "entityType": "User",
    "nonce": "0x4eef3bcf46ed1f70b59b2d33e19251b4e955bb33a0736e4cb3bb56c9381c8e18",
    "signature": "0xe60639c19e2734c9ab39e8583f834c7b74e0c7ec794b9a55d8f029dc57ef4b2d25b9ff9f13067be92debc9694a7f19320c7e75129c0d51cd27e9ade7722dcffc1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}