{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "828368024",
    "entityType": "User",
    "nonce": "0xf678ce90b77fc92b88f2e196a13b62fad84e2b3294f0c1915244162dfe2690ff",
    "signature": "0xcb2a171f85a30dccf96f07b66b6c3e2d5597a1b00dd5e19e9ef3d1bd23294e9376b8c08447da5e9b446f7b2a20356e8c3e80c26e12df6583dcc28dc6cb046bb21b",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}