{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "204697",
    "entityType": "User",
    "nonce": "0x6004fcf5311d091fa8030554121082da032dfc37e74d4ad565ddfebcef114e4c",
    "signature": "0xe799c7f2a2df1f0e60f3b841a0be4a4d4dd4f64138a819703ea2a440bd01e1a077e4ed8a11e501aeab357e1fc039fcb7cae02d328761839bf894b4b148bdbf4d1c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}