{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "876249",
    "entityType": "User",
    "nonce": "0x0b0ccc3d564e54681c30173d540d8370db252a1a1ddb360b129a14bb5cb07ee5",
    "signature": "0x95095644c1f3969558e21e1e8d2cc27f3fa319a6a6985fa7827dac941db387247876e84d7fcd7de9935a8aa83b984ee2063f2f48db2d3ed9c18e955b64e454231c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}