{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "580720856",
    "entityType": "User",
    "nonce": "0x10d326cd8cb533550e0ba80af2141484d9aa2e3037ebc160b7ddcd22dfa7e6b3",
    "signature": "0xc2bfaeceec2ad22ef7801164589da06d6df3ddfdf7d78d1b4b3c1b538e53d5f24e52afbd7fdee0fa3f10e54359f10d98d7f35770f3672df05f4d1621d6b57d8b1b",
    "signer": "0x195d9eE11400245E841C02c4b4288a90A8195e91",
    "userId": "103785872"
  }
}