{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "329513359",
    "entityType": "User",
    "nonce": "0x12124d8108d99af82583bc121b9480086facec3dc1403f2877a037a8a17c4fcf",
    "signature": "0x2a9ac751f1a0028868f34597e7e9c98001f0251d3df17a87dc5f6a7b402678cf3b2b5385e8f4ad5775b6668851b225ea670935de79a68d819b0502c9bcbf525b1b",
    "signer": "0x5FB1dF0c125C1F3cdda251a598Cb878a0A390F18",
    "userId": "25189733"
  }
}