{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "958030624",
    "entityType": "User",
    "nonce": "0x5fcb6567e3822f95383a24f473a8168a54f674aea9c4524600ceeebdb526a56b",
    "signature": "0x17e2b92f52248b73b0ad112828a63a56df877e5451dbff6b74405159347ca3b936ce6c10ea6747056633e5f69ab4ccb231cb1e59fb752ae4d9d170f949b54b121c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}