{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "240171275",
    "entityType": "User",
    "nonce": "0x8135f3f862c4e85f8d961fe56826d57c771e2042c2661e7811b6b49761e21cbd",
    "signature": "0x7c2996e6f7048c86ecf4211f483185544c8ae28f0a06aee1a8ec8ccfbd02792d654345fa35b12d535dfb6434addd1bf4263887263e30002f58a8ecb28318bd8a1c",
    "signer": "0x81f60DEAd0cdA833Ad17fe7Ddd37b36E62630205",
    "userId": "132087202"
  }
}