{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "48804",
    "entityType": "User",
    "nonce": "0x3a4df07446e92546aa82ca4fda9e384765eebd771e094db897a95e323ca68d5e",
    "signature": "0x5a82e5335053072e0fc4bd58942a5ee4a97836780e9bb0a2274c08e369c9235b1158a99ad2f1374e4fb2b9f972cdc960ad957ba1f4bb2230b6e312bbb772aa551b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}