{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "807904117",
    "entityType": "User",
    "nonce": "0x3ac036fd6db3c04a0e51546be41f3a25fe5ed8f193c236722aeaa9de8188042e",
    "signature": "0x29060baa442fa30b1a3c8a54da63ab6ba04dd5ded2b153ad78eaf0e434fb368813f3959d4137ec121a8608f67a261e5be93832c7f969db65570a738ef35ecd551b",
    "signer": "0x9FF2A7F5Fab732dA57359bb3eD63a95511bD1329",
    "userId": "67863854"
  }
}