{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77868",
    "entityType": "User",
    "nonce": "0x7375852f34507b7bc482b6a61cf7e511ebb23dc3b4e38ea5fef8930fbeb68d0a",
    "signature": "0xd8ad6447dcbeaf41c536577751459b60e99714c2d7cef7816edc182925fbb1853630d00ebad9d90406e14b3977caf140dc579b4274ce5eead386b871b6f2894c1c",
    "signer": "0x745895918A1926af8a7B4C34Af51BdF98bf5C7C8",
    "userId": "54958731"
  }
}