{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18218",
    "entityType": "User",
    "nonce": "0x145b4620404c17ccf679d7b6bf5313324ffbca99ebe6001c01a0ee83051d874c",
    "signature": "0xc8bd4bbd61c227d0efad9fb3b4cd28f895d2660360f294c194e89b1609199746645b2d2f3bc212cb9ba758f24a0fbbc42b48ce4e3d8bee0e137be560bac6a8a91c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}