{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "145731",
    "entityType": "User",
    "nonce": "0x1b479f7d4de5f8f11ceb5ca020a71e57b64a6ba58c7e296dd516ad274640fd75",
    "signature": "0x78c2c4c35febbcb32471c1f70b4f725163b4ea19e380748df554305f5237a85f6fbb26a51323e567f57bc4d80f192aadd135a4f3529ed619f927f2e3619125df1b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}