{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2b3c19aaf73fc324a80061fd671a789870888211df78585de81a2ef4c5087ce9",
    "signature": "0x2d75a32e0b4c7c5e2e13ddfbc3ba7726b63ca01b0d6a8c3bfd2a2f230025e15625755d6ddae844aa518b4fae55524190cec12044e90c9e57c3986208eb39db2a1c",
    "signer": "0xD282F68EA7185E6570ceEa75a01b48253BE91275",
    "userId": "543589650"
  }
}