{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "174222",
    "entityType": "User",
    "nonce": "0xd4e6d1737eab1a679e83b023bbbe14b91f4a19a9b89451f6539db770ce70bdb4",
    "signature": "0xafd5ed54500eeee5e8f7981303eb38fc60608f5a90f7a7c3b05aa71e2c5dd8af36bdfb334d7bb1167b77984686e2a3f218af2419593a5dd3003407259f2462aa1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}