{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "897648338",
    "entityType": "User",
    "nonce": "0xcbddc138b140439f31ef0e39ba76e764d95b5e7dd7af2bd327da3b9eaa36fe4a",
    "signature": "0xed9cf460a3fd36b37a4facfc88e568453f247099ccf88065b9d202cb3ccd5d1a1ed57eecba51c96580a8e6f429a0b729dc40b5d436b5b25feffc0109b3a609cf1b",
    "signer": "0x4b8C8Bf7753B25e756D56124590F13eE023632B2",
    "userId": "138349429"
  }
}