{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "329513359",
    "entityType": "User",
    "nonce": "0xc38d191b9d99f6de1d538d57673154548e828bd6e1b86724e660e319a5faf837",
    "signature": "0xa2d60b92ab5fbfe9955ad015afb62fe52b953de96a73a75316ab73028bd6ce3d5666043029e6f536413a1905a298aabe36aa5f6943010cf5f148f663f4e1ccb71c",
    "signer": "0xa185Ff45de6FF68eAa1d7ceC338cba250810134c",
    "userId": "54166466"
  }
}