{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "166864",
    "entityType": "User",
    "nonce": "0xb602d713661f7645c26525e6f055ecdf441ab695f912ef8e5f1689fd06be7839",
    "signature": "0xa09141d83c7a522a90797bc012af14feec842bd8a5b8617e8048dbbb43dc5ed638d3c4b6f3c177b72f4d4dbdeec3b3f34b7c312d0ddc0acd0acf8eccd1c3f8fc1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}