{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "869267771",
    "entityType": "User",
    "nonce": "0xc0cd17000eaea903b53c93bd7a2cb28d1d1691e41557aef445b893fc946fd9e8",
    "signature": "0xd3d5ba7a283973c1ce45ea13bfa6bd7767837b5ceeefa40dc68c7012322fa6cc1ff92b0bf721fd119a6830760c0fedcc1176a2e29b34225a5926d88d36849dfd1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}