{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "951116729",
    "entityType": "User",
    "nonce": "0x99b9c39d21e3101ed4e034d202a6e86bbc3b133024ec90330f8f0e8e581d6e6f",
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    "signer": "0x03015d975f8B0d07425826BFAc15A4492F59a5B7",
    "userId": "658736296"
  }
}