{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "386245473",
    "entityType": "User",
    "nonce": "0x7243a3219b5a60442b81d868a9c3a2d5035fc425e4e34161af17287e35336d0e",
    "signature": "0xae5800d1b55aa80c6955fea2144bac854d79e07c10a6eafbdc84c64507c9a38c02bfa95629ba760c0d860f7591634d3a592ef88a3c4be9e1c7d91080b36fe3ae1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}