{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "392153838",
    "entityType": "User",
    "nonce": "0xeccdc3dac6d65a655c6600bd09c0ae8aceda67a04fae516b0a19ce03a92c5af2",
    "signature": "0x5998963f4d32d517f883879ef2b9c420983ba5a370a53191fd1d0e86e03329870c53847d289efff4132b0c783ea564039b0cd0b88a601dd197c4fa825b4281c61b",
    "signer": "0xC56E1ccbA93c1E645e5F27Bf8A5ca13eB7A5eEbe",
    "userId": "335878078"
  }
}