{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "301606",
    "entityType": "User",
    "nonce": "0xe43cc17d9dbf0601d1b615f8418ba5fad92cfce53a8119336f448f72b1299398",
    "signature": "0x093c542ac0471e3fe4d484a391c34964944022c8ebfc1b27107327631212059e38a24a8062975da446f063b90cbc7fdd68c5b141051c069fdbf5a666dcc571b21c",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}