{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "247261",
    "entityType": "User",
    "nonce": "0x8e1c2f5bd5fa76393aa556aa9569af5fcc338e23d7c3d2e5df90de4983c3445d",
    "signature": "0xa77b248b507b75e41ef127a7dc39080485fe49d376bc2fc254429f4e5fb5766c17018262f1d35655601b120ba73a6b6ae91e939c09311bdbb0af8ba382178c7c1c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}