{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "285281",
    "entityType": "User",
    "nonce": "0x3ba50b04d729f8308e08a748b60454ea328a915f23af42e1315e8196c389eab1",
    "signature": "0x1e7713a788a5e0724ff8b12268b78fe60d76edf1d2249cef687b514843894f736290be453e39004fe607c088665f4551cb1fe3feba183b243f01aa29e9eb72701c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}