{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "195744",
    "entityType": "User",
    "nonce": "0x4f41a48efd5c087507aa91815fc1c1ab713c1c12aa69eb1d0c19989571ec0b70",
    "signature": "0x58c6342a1d51716dd924493ddb8f6dc70c4c0b5a02914eba43a07c68aaa35a887e25f49fb2904fd08b0e5739e2cbe73d681ee0f1e25d604b1a1fc571fbefadd01c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}