{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "964257878",
    "entityType": "User",
    "nonce": "0x4fb4575b121fbab0e709f57618c4dc60917ae5dbbcdd455281ae82906fd79100",
    "signature": "0x4657aa182e78c181dd5c5055ab35a297c2d75134d343be8e8f94c6c7430c204e304dda00bd1fe24f0c6de609ece28a8d098ab17329d9f02843ca44d8d3a1d1041c",
    "signer": "0x2B171214e998033E806F72301307B2160CD94DdB",
    "userId": "489165782"
  }
}