{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "343",
    "entityType": "User",
    "nonce": "0x97e188c16c0c4f8a0a2f456e7f63c18c7fb4d880bb586e48365514003ef08a5f",
    "signature": "0xdafbb404e859a29507715578f3410dfe0130c48737fd0a5db5d4687490d04eba7fb8e872101ff928cc74b7ed30d56d3cd9d2a27d3e5eca0186054a1aa5f5b58a1b",
    "signer": "0x5fa60F185681545769de01098bB8F29cfbaE3cF0",
    "userId": "489026160"
  }
}