{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "215993",
    "entityType": "User",
    "nonce": "0xc53403fff95e255fe3a2a39c8112c99b0f235a468eb4716b48fca767b21271ef",
    "signature": "0xf086163515d9cba5a3543dd60192c2e22c43616d54f546ddd2a7cd9bea684df2455b46a1bbb138691106903f57281bb458fe5451e2fb6dcb86d6ffefdfa3644c1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}