{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "156881",
    "entityType": "User",
    "nonce": "0xa5c9760e5909c11de1217925413e9786e0007b44b4d18d4eb04cf48775909867",
    "signature": "0x1c11092771264781a2b18c2b3a1e0cd6af83dc170e901aa80e9d84418bff64631a4c545d7bb782fbc36c440b06b1226f60cb804c5b6e197e9e0bca5b7eaa835b1c",
    "signer": "0xeD4de8C7aEdcca7a62a5E17Fb9DF5ee4991E5b73",
    "userId": "209405413"
  }
}