{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "970214396",
    "entityType": "User",
    "nonce": "0xb81135b3ed54c66a814345f272891baaecd9320b81551592856bd3ec58dc3628",
    "signature": "0xa3e6d6449e92dbd0176a0c50693cd139f8b541c90ee058584d448ac3cecb93ab039df241693e36b1de9401fffa103f66b4e1c8ea76c3266c63b6d67ca16fb1061c",
    "signer": "0xC9aB7f59D27E72b3dD936822c6C65A8dCcc82658",
    "userId": "489809902"
  }
}