{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "271040",
    "entityType": "User",
    "nonce": "0xb406aec7b683a03191c756737561e3d82af50449172ce408c2390043d8b0a41a",
    "signature": "0xc78b634e8bce45106d78caa3aa06bdc37623d602338197253b9131c58eff0e3125e15f537162f6ec91406bb25c0a8e58813dd6ef1cc7af492a35ce7cefbedc621c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}