{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "210033902",
    "entityType": "User",
    "nonce": "0xaf12a9b9cb1d19e02eedb6b73a2c6d3b305eb2ed1a13c6898856d0c3e0698185",
    "signature": "0x232b94ca64e058b6bdbc18e9695f2992e28f0e7a34693f6525204213787fb35f22b5c9e04bc91e69fb06b494e55977bd88663792fcba45f794d64d3a0681d6bf1c",
    "signer": "0x262FfE6368E86674bFd32404757f3A8B1a189F85",
    "userId": "664900058"
  }
}