{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "67243",
    "entityType": "User",
    "nonce": "0xe72ee6efe792abf7dcedff0cf23a0df7e3550aaa56ab5526235264b05d76cae9",
    "signature": "0x90fac6fb0a1a3864f32f5a1b422e52710a51315979a5077c9025c54cad5d4ca417e6c614b1c468d1ae62392440a1a46d2099e8a1baa8b8e0bfe7306906ce4c4d1c",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}