{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "393513270",
    "entityType": "User",
    "nonce": "0x534e7532f12f5931ce26c481f89a55098097846058348edfce56e6254e8a2558",
    "signature": "0x87b7d3a38e871d1d1b023eb46b0d98978979f7cab1497036fccf2b74ab597dc06c94cf30659fb4eb97998d67935c5d4ea6ba959d3119d16a82c45e9b031133651b",
    "signer": "0x18ce7cC21ceFb983971261a224026468F43b56E9",
    "userId": "272851190"
  }
}