{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa0a610dd74d3baf51772bfbe2fa5844aee5dd9ec5c6488349942f64e990940ae",
    "signature": "0x7498f98f026e0a23c47e91dd636a9cb5f2c20b781f1709690fd3b84b83dd403d5decc96468e6e8b9b238323535c71615f6d6cb2fcaf7c4947587e1b75065bd2e1c",
    "signer": "0x369e141491ccFe62c4bc4c6b3f30fF1AC366246C",
    "userId": "135194714"
  }
}