{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "823613833",
    "entityType": "User",
    "nonce": "0x3c38648668743b8cb93396a238a974c7c3063434954d6e01e5d3c9522dbc87a6",
    "signature": "0x1546ed322e9705d5e6d4d69a62303492d3b8c3f5c1d7c4bb72949d0ff1948265221279b3f964e15a7cf5616eff9166cfc378de422f7655a32a2791e49ebb75e31b",
    "signer": "0x2B171214e998033E806F72301307B2160CD94DdB",
    "userId": "489165782"
  }
}