{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "307249",
    "entityType": "User",
    "nonce": "0x038773f9272b30bb2a5b2ea45d2fe1c75981b0270ce4fe2930f9e42e3f00311b",
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    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}