{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "13671",
    "entityType": "User",
    "nonce": "0xefa7567e474e91f8fb6b748586b0f42a8e1dc6ed5ac170373ecd40a01353a97b",
    "signature": "0x42783a87dac0e0eda468fd251d8f0177dfe60bc1f372450f35434e767a7b712a2b1594e2f6852323b51108556e6fabecb7885c4870c1909d48961089b13bc33b1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}