{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "694752224",
    "entityType": "User",
    "nonce": "0x9574140b8ca079105b5478d2012b7b8ff1f7899a9b5115f2d601847ff56cabc7",
    "signature": "0x2a2812dfd9403a260ec3c3efc0bf81f2105f7462c83c699df284fe76ab164a6d60c56c95b7055851d592a0a93ac1ee63c8bbae1555a937817fd360087ed2f9c91b",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}