{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "679244231",
    "entityType": "User",
    "nonce": "0xd638cb2c2ee0a226dac3ffd064502cf6ba1bd85e875b4fd127367bafdad75fc9",
    "signature": "0x6d215dff0c284204a3596d7d2dd3517dabaa3eaf3af353dc408ec60dff73c01a5377670f3ed2dae7a1666322e08143b3250a4f3973fba81fc2f05be935d077141b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}