{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "967323686",
    "entityType": "User",
    "nonce": "0x7bcf4b526863c14d8d252c9ca0d9befebc0f0b99b1dad62f8611048b5b3746b8",
    "signature": "0x4bcee82c17d910a989d0b5f9c80bd8c9c287f2b678db9fc541c45273fec6bc2673d329132de5facbcd4fb928b77df7845eb0500bd4fe470d289e2947d9812db71b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}