{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "564344",
    "entityType": "User",
    "nonce": "0xa5af5f6f1ad8b8945c46ed81daf1c9d02e8faa5a32a9a44baaac5b7594bc9be3",
    "signature": "0x47de5ba719edccd55fdb41a655d2d285ce18cf101c4790e9ad04fd09fe019cfe32f7d9f71ce837308acc5a41c3ac555c974170a69180ec4eed3e808c98b8255e1b",
    "signer": "0x94d1769762bc3a1e7DCd3e8a31C89Ff199833Da6",
    "userId": "715573876"
  }
}