{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0xea03f8f3f9178db51f97efc1d5a82748b241b32c17d247d65207e66d5bd88ecc",
    "signature": "0xb0e96ff7060e1fe5c1498c6a9799c3284434bd9e98cff771ccd6b155bff970627a839d91480f61cbaca98445eddf386afbe9674edf8fac07c427fc9d8f8d3b4a1c",
    "signer": "0x380358AE7f811C21774F3dEc1F4d5EDC17e6324c",
    "userId": "904019784"
  }
}