{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x51d3076a0f72621fbf76829f16d4e4e955b502136bd93fe0c02187bac06ec6d6",
    "signature": "0x070b34cd1f896eba88a2bb2777d1fe5d6c62c73df2afdc58d7ed4b99caa7c2f73cdcab4c462a0d7d608e0c98a0d042b40b4875ad20d9ad16525771bb2445f0c71c",
    "signer": "0xf0b7347530b832fbFea0Bb3327Ec6298b431225A",
    "userId": "62942053"
  }
}