{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "296200",
    "entityType": "User",
    "nonce": "0xdefb663460d2b82146dacd04d00c950b7d2619bbf3ff8da22dcf8d607ee18b0f",
    "signature": "0x2027d60446dab59e1848dafdd0a5b5fbcc2c3faaac13d9fc2663626dcbcb7c5e4cfd1b466f33e3e86babaf354706c0fc1e5c79cfe04e25c5bbc96004aad100301b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}