{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4edabd739af03ddf1fa55f3953defb249e5cb0e636844a0a6741a616dbd375ad",
    "signature": "0xaae9ce0bd7673781ae4d60b80bad2d2ca2b7e1d9f4a73739a247dc24519c2f0c249ffecf8bdb66292835a7c6bfd2629a93184b3840d00ac6355182ee6784ca661c",
    "signer": "0xde8Eae368d980fEa787615994540039EddC2FC89",
    "userId": "686654262"
  }
}