{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "153123",
    "entityType": "User",
    "nonce": "0xf589dac1d80b535698f1b0cfed962b03ca3a143a79eea5eabc01119a636da6b1",
    "signature": "0x33ce10a89a53ee1dce25c120a847b4f978513c5bd94ae9ec2469c6707a9f553e256aaf423d80bb5b941eec78da2c9f9ed5c8a9cae964e99aea31c6c1510fc72a1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}