{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "136844578",
    "entityType": "User",
    "nonce": "0x11c83ead2fc75e8155fe7baa3b7ecd0541006da0eba93b247ec97db29a7f1e79",
    "signature": "0x3e8f12a32371851a13ca96f1f2bd4b540a6d02b259fefe8705944f3cdbff7ae07e29e2e02f1b393e38b7920eafd5c34d394cf4dc1fb7fb7a6a58f37e9ff387651b",
    "signer": "0x2BD0c2111290EB20B2843e8b1c0f25aA5cd52a6f",
    "userId": "618242981"
  }
}