{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "557210595",
    "entityType": "User",
    "nonce": "0x1805e80fba0c40f950dbb0e257acfae56155faa23311801be8b0b46d04a0ec70",
    "signature": "0xffe9ad6ab1a55c2fc1b14b433605e093fda88c45ba8e98edf89e02fdf7fc674d0eea6be01989ada490b9472c57012a2729890bf175fdc603288fb22f2321b4721c",
    "signer": "0x2ACda02e37Db2DC08f82aEFAB268F0610974bb3c",
    "userId": "416239376"
  }
}