{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "872142418",
    "entityType": "User",
    "nonce": "0x4ad8135d114cf277dc1b698113a51f0da76489f9c642a45d17b067300ec0a9a3",
    "signature": "0xe6cee9e9a92f2c6182f0912c6e806b8a6c9eb3549d48ee8a3d7bf67600947fb55dae7df3d55394b0f0fff853af10a3a1b71e59c827b2eecdf3839370d9d081c31b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}