{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xefab7db07cf3199442f9dbcc85ace0d8706859f68de057e6d277ee54efaf3ef3",
    "signature": "0x260ff33e12727d9eb55d17ecf2d6669a5a3d2babf48ea2b46ae7a581452ec4a4060a0778e0cb3967bff4291049e37cbe1a20144ee891c2f60fb830c867ae8e311b",
    "signer": "0xEa50835C663CdcF6C7F126584851d76E00CAB10A",
    "userId": "192506779"
  }
}