{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "151257",
    "entityType": "User",
    "nonce": "0x1fc41b94bcca7e061660ba023731d8d8614349603596643796b026a9678de2f9",
    "signature": "0xa698a35c701d0358c21b9a1b879b1cb8d56f912e9df9d0aa41222b31a59935491cd100feb265e76bc7937db7252d313f82267bc2fc31c211471899cdb5c28f091c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}