{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "902557325",
    "entityType": "User",
    "nonce": "0x5e64b6cf5c6e8dd26488b8d60f7d5f69885b4ff805249618a06bbd98211baa27",
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    "signer": "0xD1BccBCb10e77Aa22B7fD24B221386e867E00097",
    "userId": "186951468"
  }
}