{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x54705ea58abe2ea22d4a6f84dd69a11521af7d30872e51f671b1058d56df2f13",
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    "signer": "0xC6B31Fb8dfcaC5630f010dD4fBaD97fdbE8F05eE",
    "userId": "722423963"
  }
}