{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "319048",
    "entityType": "User",
    "nonce": "0xb152a828bfc93385f6b208d3aef3a7c35b3468febec6eec7be046bbec68a893b",
    "signature": "0x9549d61176cbcb01c98bcc267e370e8cc1748c8e7a49c60235f347c52c96080f47405b0582cc23b86a2d4ab0bb87bef753282dfa37576b00362dad6ccf3c9ccc1b",
    "signer": "0x81f60DEAd0cdA833Ad17fe7Ddd37b36E62630205",
    "userId": "132087202"
  }
}