{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "311149",
    "entityType": "User",
    "nonce": "0xd128f76ed3230202074dc5962da673258680f9d7d93b932e6a805057d8bbe356",
    "signature": "0x9e3c6f3af0ba7e8e118747f3a54d3705418187b0df24df988681047295856f5e79bc2578fd1c11c1a6a07709dda038cf3a7af42937bff22df6c2d14e07a9e0361c",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}