{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "8223",
    "entityType": "User",
    "nonce": "0xae71a1bfe0cdad9e01281f11ea943e0b0dba04c0460bc0dcdd0880cce75be437",
    "signature": "0x9605f3708e77ec0191c0188dcba50653b16f4e355698226b8e7518e0547da5c13600d4b3f52932116a3a619f78da7a41f6c2950798d47b979ab3440033e25b1b1c",
    "signer": "0x4D8EDeF47b57f98c89BDFf851267B0327BE4cD05",
    "userId": "5307724"
  }
}