{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "125820",
    "entityType": "User",
    "nonce": "0x8c0691f749851158950d882b9b2e9a56d193037f676eb44d121949676a66c7b5",
    "signature": "0x3f2a176e468bc704cc4eed65f4f3f6589dd503943f731670ade5fbfde23c610935d39915858ce7041135ca52ef947a335728f97528d0a069630c36b0d9ed9b961b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}