{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "27644",
    "entityType": "User",
    "nonce": "0xc651027fd79b44d091f789d8a25aae989621d8f0a608e4b0d469fcb1f2ec943e",
    "signature": "0xf4ffdcdab05dd9d977e9b3a5fdce70d9a3273f0618f1c520ee463e723a365e7a6a4c4130a3e1029a60f3bfd6bbfc9ec056e3dc1d343952cbc0c8353ff5959c621b",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}