{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x801143a980c70aee49b7317740f0bf5725267a9203c979cc1aea630e5e4853a3",
    "signature": "0x6aeec4e288d5e2c79a8eb711781df99e872d87d1996c1e62e8bb1e039c27da7b6f5a0990384a2bb798d3b27fe1644bec27d6360da1bf5f1f795cd45e8935fd8e1c",
    "signer": "0x472B533E340a2BFd1816292204A5e22c6f355e3D",
    "userId": "588482306"
  }
}