{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4718c16b9ba86d148ba92f588f700f33bee5f7c19784c13c8a0dc328e855f0c4",
    "signature": "0x58ae8fd019db17163d95adcb502e24c2ed2b1fb10b09ee2ec88f436d1e0de13a6707986837715bbbc0d92cd666bf4d2cb06ab9131757be2706ef67a48c4269031b",
    "signer": "0xFaa46B3880Ba37898550cF68DfA837748B6EB313",
    "userId": "144808967"
  }
}