{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "6542",
    "entityType": "User",
    "nonce": "0xda42cd3232446229fa1e342e33e1d8180e590b7db3844bd62c240ca8fb7df78c",
    "signature": "0xc6338d744ae170d153a2375d27299a191c4cf8977b869b39202d8bb082c91dc04106cc4b59c7666030b6282071c1fac0f08e81d76dc12f9d617ac8799a32032c1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}