{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "105562689",
    "entityType": "User",
    "nonce": "0x1eaf000e980fcc8faba0205cd0e817a4df7049c6077d0e1994c2ed00b64f1531",
    "signature": "0x53439ea291324fd80986592606e9490f99ea2352b9768596acd79545040bbb1a27ba7e51f52cb85605f7ea42d0b46dee34e56fcce009bfd270e26aadc5c575581c",
    "signer": "0x5D012C880480A2E1ab4345f6F374CFf73e040331",
    "userId": "10449019"
  }
}