{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0a23148a8380e098486e1e7ff07b4a94db926fd9d622e2a90fc2530c6d3cea53",
    "signature": "0x09804648bffa228a57ad20676d3720359e8f0d0724dc9be7cc6f0544ab96754656c37fd5e1e784e09eaf2359de84b2367cbc95e84fd3f53f634f4aebe6ada1471b",
    "signer": "0x9df061dd96b69d4eaefF4BD0925958DA09Fea19a",
    "userId": "221578791"
  }
}