{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x07a657960385ada2563eb1e05670970efb572c499feaf9222cb96bc665b980b4",
    "signature": "0xaec670571533f28b2fdc55895cb40f96c6e8a3bf83936c7d4c69ca495d09d00f047ab4f8ac455385cbea25c34d933924bc60c6ead9577ca72d337bc996d645561c",
    "signer": "0xF67346E1E8dea4E9f4a5e2Da7f2586cD4b61ca86",
    "userId": "260593009"
  }
}