{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xeebb99debc30ff232684a98ba1d99a4612e0e2bf51464bbbd241c2610267dc24",
    "signature": "0xeb4e07c08e461c2db0f144cf51d8163a4e3b947c294da2a33c522d8448b460c547f0283bff877faafbdee91d9649d6ea7f322673582c3499856a52d1c8664c5d1b",
    "signer": "0x2ac9D5A9752B236D53808C87C1c717dA54E8a506",
    "userId": "658125230"
  }
}