{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "107790",
    "entityType": "User",
    "nonce": "0x5228d182922dad852c3ea0d8e27b3b08aed44db88acb8f3af0d3b359a8a45ab2",
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    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}