{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "696185175",
    "entityType": "User",
    "nonce": "0x60d9b72512771151fd26293ce950b0be12862a2e239982dd5664c1e5f6182aee",
    "signature": "0x8d8b65a77cd0625a1405f5ee663467f808f02db0226ff4262fbe993c42fbc7ed130ad3d99ce4e5b2f36cc37dd9ce0a00f791a437c8f8bd306e635bf6c4078c9a1c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}