{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "203752",
    "entityType": "User",
    "nonce": "0x441c8ea91b94176fdc72b476dcd293cfca30b03efa1a3c8742268057aafcd06a",
    "signature": "0x8346523e906223f99018e32f5a3b7e839d0acb3185be39b29e512eee6ef92af953b30710122b81d2cb67498466b742dba003743d6158b959f940ebfd586244d31c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}