{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa7ca21ccdf026eb7420be1e9227cab566e4f42764ba20f8a4750b4d92355b7c5",
    "signature": "0xd6955051c07f0bf2c46bf4d1d52c209eff267ce4cfe74000fc3ccceabc426d527e7f0eb64571578fc823014969c802ab881541c8d489c4d604a31cca6af335a91b",
    "signer": "0x9930cFe3EDEbE0458BC7a7dE33D87aa68cfaf8E1",
    "userId": "152141710"
  }
}