{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2174",
    "entityType": "User",
    "nonce": "0xe4b7652e0fbba591f47e4ad9b2b2fcba009c041a67ae9bdd891495aef8ccca78",
    "signature": "0xa970b389b2ccd00c3be93f77b353711a6cbeeab8eb3b4c9634659ee4c329bced65919f76bb49c52c83a0aa9badaebaa9b8eb4909b17cc85c0d5675869ff9f9fa1b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}