{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x30a6f35195cb481e9b7e728e0d1c54c9a36a3993af8f15e3c0aa44c03f99b315",
    "signature": "0xf4a5ce50da88f56c8e5c710b241374170644ae447109a9108d70486ed19e4bac4b4188543ede479457a13bb0f1bfef0e349dcc20a1f80787081455736698a2fc1c",
    "signer": "0x8782c04C315d65be053ab354d5D9D7B980a5C54d",
    "userId": "620856770"
  }
}