{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "977465332",
    "entityType": "User",
    "nonce": "0xfc8df1fd2b795192e0ed54b4468fea03fd6407467c9506eaf937ce96f2627f41",
    "signature": "0x83cd2d1ace0baed93c19112ef273ac9b15a9fd7a2c9932f1bf195d3b5b0928481a4335cb2de95f486f7d72e5bd4f1bcb8ee73290553273925411223b4b1793281c",
    "signer": "0x4C0e8973cC8C5BB66d6627C8D489e336f0825A94",
    "userId": "939865626"
  }
}