{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1472603",
    "entityType": "User",
    "nonce": "0x2daab35861e8eb1c60276b0609c30acbf4e0309bc4792783c18f099d3819721d",
    "signature": "0xca0369901ab93d3d9134c8e595bdb9d7de94aa8db3123af77661de21dd8cfccd001dd482a94f1e7fe3363b13f2191820924a390065065db5f538e7b538feff251c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}