{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "650995561",
    "entityType": "User",
    "nonce": "0x9632df69d13cc443ec61fc22a9bfd3812985c9b6edd2d9776c66182901855d40",
    "signature": "0xf7cc415e858e26ac8f6c818fee7556f886a696beeb3554275ce38a861e3e8a730e3cf382a200f64ae9a6ab02f2df4cc8d8831c65ad91f245631736393bda6eaa1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}