{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "63670",
    "entityType": "User",
    "nonce": "0x966dea7fc84ac50d2d1e994913f1b94df4f35557e92394466f0771035c8e32a3",
    "signature": "0xf858cc74c86c471493deef1cd36e44087539fc98462dcaa80684aa0f01f7ab23377c8a674bebcc5db68b790009178e352b3ded0ff732245c89ab854f799435521c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}