{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "353549514",
    "entityType": "User",
    "nonce": "0xc1192110aa3c7a5929c54cd132a9f33004c94e1d3f03d829a1b85ecb3f30a2dc",
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    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}