{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "44142994",
    "entityType": "User",
    "nonce": "0x29e1242e8ea76999dd721867df8da06ac50aff10bc10afbd82836cb9023a6f91",
    "signature": "0xc4e9fb8d4b6d0efb18f95bb58952aee14ebe81188a0d4c849b88aced436d90534982744707e22bc6e20beeabad994685dc7b1ae8d658a706f793ce2e274683b31c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}