{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x26272fb14492980876bbda3c0728b103276f8ec82dd455ff7ef7306f6a366afb",
    "signature": "0xa6cfd175da846697e8d775d7a1e8e4d92dcb774175822c66670157777dc415407c4a821088e84fdb8dfe5a444393eb78b4590cb0428a468db10a6cb17fc19c601b",
    "signer": "0x4034eF37dB9F31499a30BA08AE6e6f13FA5F1c6A",
    "userId": "143476815"
  }
}