{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x738da1b52e11f513ab468e90de99e517eaa6495d5a2c90048207f5a5bd94b5f1",
    "signature": "0xcbb94024f57d29dd7128360db9ba1d6d07106ae60725010b14cebf43326f9d331d8681a1c35e81d22c1d906e71740bcd82382a63fb71fdbc461d0628ab2114c51c",
    "signer": "0x9B17CadCD64ff474Ef45c504Ba03346Dab66c0d5",
    "userId": "93106524"
  }
}