{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50424",
    "entityType": "User",
    "nonce": "0x2fedec5b71d7597c59d71951e7240351a282036fc7d13f65ef4a3f326f39d084",
    "signature": "0x5cca2950660feb6d3b709244a39a58a8a663a63084b625d16de405053ae832577693ff224859f7181a076ddc9b4231cae06b4095f985653f6648046d634ea9531c",
    "signer": "0x4950A7c498b6c214e83B79502162b7f248f9e6ed",
    "userId": "499895630"
  }
}