{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "968205464",
    "entityType": "User",
    "nonce": "0xbdffd1291f6b03779298d2a611fabbcc5f6c04fe3d5e893cd98f0a3a4c3c0535",
    "signature": "0x0c27acd720133cedf4310a108315e7307e1999126a238be24d3f2601b500b36568eab0af2d04cff03b21521b495b6b667c27399344a17c81e2f460cb2a1094f51c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}