{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "471593",
    "entityType": "User",
    "nonce": "0x0f61f841549b70822e2290fe5e19b47c7913897058aeca7dd58d1e3a72793d29",
    "signature": "0x49b06ae9054d94f212ffd5d03e90fb4a1eaa189b4998b237090602890c135432421b57808e1a3f24cd5248fb35ad2d105233440c03ff81726e1c31240a44658d1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}