{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "410854634",
    "entityType": "User",
    "nonce": "0x3e02c37813b8b199f9202bc05ef0157c6f9f00f270fcf3f2bcb2e90918dc450a",
    "signature": "0xdfc1d8dcabfd8c52f320601bab41a2fe333a81ff2eb97a92cfbe53f675e1733a066caaa3bc2083040051d64057b6da5818e55a987a2a96875e4db1143ca2041e1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}