{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "395",
    "entityType": "User",
    "nonce": "0xd938b1077dc5efbe458673fd319d94341bc8c81fe9885e18f4dc552fbffa8c9d",
    "signature": "0xf4975ee4750da9dfb8709c591c9d8feabc739a22fef13b174c785d33aac5490640fb956b2b4def870e319a9489ee10c66197d5c2c30771b399a1bafc9c8032591c",
    "signer": "0x90d627796C9E2071AAd9F8C20f6dCE95587F6d13",
    "userId": "560619378"
  }
}