{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "348251",
    "entityType": "User",
    "nonce": "0x55af04569853cc48150f9349466434289582503a4aa826e995d85737aee737d0",
    "signature": "0x2b12fbfa00b868ab6e57172b1108a6fec05c1279ab102ffe13b3eaf4c089700c123d969cd433c27e8a6904a6bace253d9cc80d76e4201b15156c28d937d0bd401c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}