{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6cea45eea62c0bb7d80d68a9218d687aeee7d2174b99c11b26625471c2337d4a",
    "signature": "0xcc9fdf5a9228751d588fb077408bd0cddaeccbe964ed5baa029d547c249352642dcdb529dbe73c4415a0ee567e8587a0fcff79286841277a1fb2eb720f365a111b",
    "signer": "0xb082D5315540e5965f852Dd2c1E5Ab7Af37bA3F8",
    "userId": "468253757"
  }
}