{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x35621093f333b1bb5eb1e934a8f380091fb4d0650e118cd6114da7b42cc38c48",
    "signature": "0x2dd2e47e8b3a384c6f5ed2b40ee302ac1872b2d72eb6c7e3bb193f3591119e2d2ff1925a9ce1d90cebc97cbcc745e8e5c71d57da81e06204cef1808bd8f2384d1c",
    "signer": "0xad12A53B30a86D04715B5663c5832Df6E2Cb9710",
    "userId": "980941"
  }
}