{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "58494",
    "entityType": "User",
    "nonce": "0x9a8d18104ba946696c01124af5df72d3dbd3720ea85e2e68f8ff0b629b17bed8",
    "signature": "0xc28e44f23de3b35a7881122974ec98b1799f22b0b8d79ab9d83c8b58a2e4243f1e67bd8f391a672c22c8a9cdf1f208403dcf1093ff2366fd64efd1cd6517f7f01b",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}