{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "12208",
    "entityType": "User",
    "nonce": "0xab2befd0af9bfd670d6d45166e3d7c5ad4b8d62d26822ebc2a527f007623806c",
    "signature": "0xe7000ff34387e6c86990b7c0107cd465728459d1b2cee443a35cc5bf35d2b9d16ab7642961d779d255f3c91aeda445ad8b6712f35479333ed8e823ac63f6f8481b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}