{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "166935",
    "entityType": "User",
    "nonce": "0xa871b0ab325fd4c00b63492b2ff5a289b98e5e4fce2e3d1d3f8018306ec7a4e4",
    "signature": "0x51858fdc83c93d585926a00c378caf788dcb8f97b2ca64dad41fab4927a32061104353e6546672cacba8a2ca3b7331e5f77ac5ced73e45b37c3d79a5c05989741c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}