{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x71214c97359b15d102748a5b4f87841f16be67ba42fcf28271a1dec3671a7e00",
    "signature": "0x9bb9cd0b57390e6442ebca51613d81b3628143d48a64be00a0819a490816d93d07bd4eea834b2f1387aa384458c3e3dada6ba2421c6d8bb5b1783b1cc0af70191b",
    "signer": "0x22ced72E64A434FC50393fF8e62bFCdB22AafB6B",
    "userId": "450282437"
  }
}