{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "25895518",
    "entityType": "User",
    "nonce": "0xccbae070fc5829df51bcdf2eefc1b29e5bdd57e0c8c91e553548347934233755",
    "signature": "0xf38a2c1773f2a42e41fcbf700e331f3dafeae791e045f1a3aaba579f50b9ab8c0c8238ce51f0aa983fcde636fa12e59da6f9eff480225fd9f65679998557331a1b",
    "signer": "0x8838cB510ADd37b71093e4FD76B81bdd280860f8",
    "userId": "674339889"
  }
}