{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9d76e62242a070002e13e78b4554979efb5372c0295c297fa7c749ed644c0f9d",
    "signature": "0xbacf1b3e9c6e46754393ad6a41962467a620f485848d69bac9f3052e8d0ef2e6668a7125a583ebe4664f1e356407bc896de66e9672cfe000cd80729f07da60401c",
    "signer": "0x8d9bfFeAB3E59b61f66Fd07c56a57f04FBE4591E",
    "userId": "863628620"
  }
}