{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "220065",
    "entityType": "User",
    "nonce": "0x87b57d715eee5d5aaf851dfd39e04faf7524f3a87fc11fed540f361049c73a34",
    "signature": "0xf238546cc1e2f4c660203e2edf52c1a423f00afb80e021a5309b75a804580da1297d9b14b4af2cffbb022bf70fe765563830c1e28bf6c1174461cb836cdf1e9b1b",
    "signer": "0x738Fb353b57EdB4d1f33c0049D33b204243db2ad",
    "userId": "693463302"
  }
}