{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x19113acc70a0132e6ea944981d4decc55de8d4350a5bd040f4df510c23ad1f3c",
    "signature": "0x3c25d1521d92619efcd6c42fb581c01d93ae27457b90896d0805f66ef544821b2e7427e8c70879d0a34532a9889e5e91fb4fd9ec45244d12ca17661ff055f9511c",
    "signer": "0x7a805EBc71263101D5c15A3E29110e32BaCC165B",
    "userId": "833146767"
  }
}