{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x70ba7fd9337f1318477a7d841f56b0de13393357f3fb531c228168ec6127e5fa",
    "signature": "0x25c2dacb31067ca5a7e0e7c3990cb5c09ec5eed374b633b37d87175e6bbc7d09324bd01b32f13301dd93c105d0688915484f11ea91bd174304676579c532f6741c",
    "signer": "0xa465c73B026B5ad4C433f27539e50e17D03F9565",
    "userId": "155578160"
  }
}