{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x59106e77d981787acb81fdbea796156d30e284abd2a7c618381a3e472452b87e",
    "signature": "0xad961c1d24f6a76418c29de5ba31e4933a7155496b3f02e793712681584615d5388ee45dce5bdd6d7d3015fc73bc4e01c55b1c092eb3104d5c11aae04f27a2571b",
    "signer": "0x4053bBB0fad68042Bad576847E59196caf756dfa",
    "userId": "931632719"
  }
}