{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "140044",
    "entityType": "User",
    "nonce": "0x9a3b054a1fb0eca41bb3ffc4feeaadb607cb6c9c85814efc5a79cc5ae95ef772",
    "signature": "0x735f00f661e06fbf7ed78c42ce37339605050a038827542e43d6d1085e05a0af6163ba9d1456de8115d56e9cb5ae0da3eac906c3a2910c59feea4bc089ccce381b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}