{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "112933",
    "entityType": "User",
    "nonce": "0x299224ccac56ec675555b68b5350273d9e8898aa25e6c20fac7b27f57da2058f",
    "signature": "0x68a4e1e7c9e6cfa2077c341f1b6c618d539b0d966d0c1def4daf9c25632ac9883e4c2992dcc922c8dc5d1259bd2aeb64b71c44c2f665b2b6e7cf2c93f29c123c1b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}