{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "196831756",
    "entityType": "User",
    "nonce": "0xc6b530c513c155a8c49766b4c80ac392136ccc0a0f3e71df4343328551873ec9",
    "signature": "0x467c8961f5423d2d10ab8f51f52696573cba3634e1aa12421abad96917aaaab9060d054f477fa506927e7adf8259877009c4f3d52ef00249ab1888a0cf2bc1261b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}