{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xcf11422d0e66f51c0afbde69bbb5c8233b2609f118ff37a6706ea3c3947bed48",
    "signature": "0xeaa4d1373a61aea56883ccda5895bd95ba95ef495b7db554e6947600fa1f92135b4b5d7cb49203d8d1dd3044e7d609c100c610ed2fa297ade3971b73f5d5cc161c",
    "signer": "0x6Ee7842A432b779E1Bf51F27B824fe86161cee6c",
    "userId": "408407824"
  }
}