{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x038905c62565adc24597ab687962a68800f50717ac405a66085fe074a190683c",
    "signature": "0x6c305eb6d73ea9f8115abd0762ed822df113b369e37c0adba170a7f0ce01533d6ce13dfcd86aaaa075eabae04c95efa6e5e1b0c120458f3b74abb11ae7bbdc081b",
    "signer": "0xBd5442D9565971dB20B431384Cf18d29D07C9F03",
    "userId": "759476110"
  }
}