{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "395354603",
    "entityType": "User",
    "nonce": "0xb7e60b301efd334fd78178ba379b8a2ddaab723e523d78fe39addd3fe2dd29bf",
    "signature": "0x979edec00a11550e20b08a90d97e306ea296470505e28c5069a52a9dd306b9c344f1bb7b670164272a054a2725834d570d3d28c66b73447d30d3dbeb015b226d1c",
    "signer": "0x94d1769762bc3a1e7DCd3e8a31C89Ff199833Da6",
    "userId": "715573876"
  }
}