{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "145897505",
    "entityType": "User",
    "nonce": "0x33d7e52ea55e1e4774714c6fc473ded8c620d84f751f6093e83aba7cebeb896a",
    "signature": "0x7db118a91d2403469471ef9167a4b03bf1cc2e2d5cb98598f93d43fe5c5276012aad9f78534b37dbfead7f4b4efc7f599c1f10bde6b76dd82a0516682eb5cbd51b",
    "signer": "0x2BD0c2111290EB20B2843e8b1c0f25aA5cd52a6f",
    "userId": "618242981"
  }
}