{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa7c180e5459394672fa7684182182be60321087cfaf67b7fc2dc2c75aa743cb5",
    "signature": "0xdd1dfc160163fe99be6d63539e55b4fce5a73237b525c20526079f0ca0d755bd5a29903c18217044c94ab7614a922bf10e00a85f68d18310c8691d587937b3981c",
    "signer": "0x113EaF85E74cdb2F989D9FC85dAbFB1296B34e8E",
    "userId": "341682530"
  }
}