{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "493966740",
    "entityType": "User",
    "nonce": "0x3ff14f43bdf46f01eef8eb4424ff72ee017c7bbdb0fba763394ad34835ad8f68",
    "signature": "0xdc6449ddeb6357d128ceed43daa94f8be73ae8c4c294a0c244c9ce750b7943a470cdda2534b5b20fa2043a3a54333323b934c4f84a21264e3eb57598494635541b",
    "signer": "0x4c92424eC92f656975227833C14e560efa65A7Eb",
    "userId": "15028640"
  }
}