{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "523179635",
    "entityType": "User",
    "nonce": "0x4b0bb332ef761757634603209e62e9618b8bca66976d2cbb9e7e23fa6c98bcc0",
    "signature": "0xcf37b01581bbdbffb05aa80c360831d24d7229d4795f757213b1405f4bba49234b642c44957b263475af7fcd86cddc554bb6dfc233aa7dd85569ea5aa063c9531c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}