{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "120272",
    "entityType": "User",
    "nonce": "0x38e05babb7e0b7e8b274f797fdb3a74c82fd35c1c0d84973609905a512c1b103",
    "signature": "0xf692bd892c2bd14b6cf245236ed5d2a3fd31c19ac505d2cf114408d7e6e35d3b4cb8c16a2425b523acc730e8c6aebeab13be140035960fc1e65c7b279b5ed1761b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}