{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "149098",
    "entityType": "User",
    "nonce": "0xde3c301f03b3a0c116111297adad7c3f3dcf996b25991dcc7a42d641d39f45af",
    "signature": "0x48c7adb1cf5780567405ede1f1dee3d81f5943830c6e7549321c9dfd73fa462d0ec4a2b4e901d3d4e892328810cc9d2d6bbe3aac6820264cf8c0282def8507c81b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}