{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "714646433",
    "entityType": "User",
    "nonce": "0xc787bdba740431dfe83aa68fd5e23a7d166758ed33ea93f5fc8089150207e4d5",
    "signature": "0x7b2f5e089bcf186fabdf3278adb8538d6f514b6268a087d5b743b429df607ca747d2a7dc0f0dcc81f23d770d8874e238978ac9238e50a8554055ca1bec74ac2b1c",
    "signer": "0xeFC9B78A20535768B9d5BCd2702b853bd5C0789c",
    "userId": "333246"
  }
}