{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1104",
    "entityType": "User",
    "nonce": "0x7c194c3222866c8d9faf44d5e1a03bf22256e7018dd35c87cc0e4ce9d685bc8b",
    "signature": "0x6b0f32858bdfd8ea1a00c30aad1c80b5ffa7a8464cd035429dcb6462c8eb78c30463208b93cb72be4a861660be0a7dedd02db0c52041a038573de227718e95231b",
    "signer": "0xEFAB3332CD5EA33e9817aa57B32CaCb8Acf973A4",
    "userId": "407216161"
  }
}