{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc7aa7a5692a2dac0fe66b2852c53d4521baae6abdd902cf7ee61f2998a72e148",
    "signature": "0x75a8d3af2054fd9c335ecfd5a86fa706eccac33a9e14dbd6cbb11c7ca3ce77076da65bcc828e322bcd536d5aac681c7a5111bed6a259d7c154af1d255bdc17ae1c",
    "signer": "0xaa30036cA70a35e92eD983dba4e290a2220Eb8da",
    "userId": "544460047"
  }
}