{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "584616263",
    "entityType": "User",
    "nonce": "0xf040a50fd8d337a8c7509eb037fa4d29290464a9fee0476bd275ed9ea68314b8",
    "signature": "0x2f38a3d0c77888686e4fe1141a8d2139ba8b9a9b518a3e5e9f82ecabb9931bfa72c3e44b922731b351d00812804d36d9bde6647ccfb758ad28d786914c377f821b",
    "signer": "0x6Af6D40d1d0B48D79D2bd3E3c8f0a45540130c0F",
    "userId": "89433"
  }
}