{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5177",
    "entityType": "User",
    "nonce": "0x0ac1288f9f628d45d92990707d208d3d124bc13cb4bdf16e5cbf0c9f6b1bb74e",
    "signature": "0x440569fb39dd3c3b57e68419a5ac0915948997f4f4f199e2982585458a714a346f04ac2953721f79a45d4d4b74cb2b45825bdd567a39c0bda6c012f74840d3a81b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}