{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50560",
    "entityType": "User",
    "nonce": "0xa6a2968673a75de1a64e9c0a327036d555aa569805cd745792fd23878f586d91",
    "signature": "0xdc138ae8740f7d3df3c735e398e64317d45a1059b7de8cc81ed8482a8eadff8a5e4a761e55ef9b5d1faf99ec3daebe068a55ef308af4f22d95205a2d3a79a1c61b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}