{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x77a538008c75ac4d9d98c76adf48a0d563d108616827de3010a8232e466bed7d",
    "signature": "0x2f9451fac6fcb9edd5a09d2a7851df1b52830af8cd473cd2f63b0fc3d84c3a7a3cbe89ea077d715b50450f32b52d616216f52c2410e2a92029d5715b56fe6ce41b",
    "signer": "0x3e6bc89597Ad6740c382b215B4d7A966C30F470d",
    "userId": "651377460"
  }
}