{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "330481",
    "entityType": "User",
    "nonce": "0x061881ac8047f5cf87af8a0ee6449fc2b30cf14377470cedfd18c77cb37195e6",
    "signature": "0x0b94fa921e0e2d02f700938dfba02b2f533b626341c5dff1be4791d7960307976e0ccd58e1f2d2f879d6983980bbc166fedd51026ae755aa1ffbf2b9d74316301b",
    "signer": "0x6818B889bFEAe14D2ADdaC4dBF0eAe75779d7Ac4",
    "userId": "341292657"
  }
}