{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "858479840",
    "entityType": "User",
    "nonce": "0x5fd9bd8480725c129c80e345d94a4ee7952e9fda7438b18577943b0fc36cb49c",
    "signature": "0xb1cc46304ecdb20f4d6537b18788749b9db67ee86936aee29087c7e6e2a95762662e8fbd57c0cdc4f2efa1882b896224914983f6d38e770d0c487d4927016da01c",
    "signer": "0xCedE64dcD8b0FdEDBdADF4b0ba433797eD6301c9",
    "userId": "638733607"
  }
}