{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "113351",
    "entityType": "User",
    "nonce": "0x02168d558f486c1f422c34a8d54dbd16b5a4ac2b4fc2e230a932fd0239b8daf2",
    "signature": "0x43647ebba5b456d6281de616c32ef142a0f339020f2f711c1dc0754f9003f43d4f70a911c2ae461146a7652a901ba5019e41d9771c9a20fe561fcee70137b8611b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}