{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5101",
    "entityType": "User",
    "nonce": "0x6e33d99b09b33355ab50daa2aecdbdd6218e8991482fe755c0e5b0174d902835",
    "signature": "0x3421d3625b0b48e9473e90aede7bfe3774b542a4df96e44837e7fdfe88e213e51859b10dcff1e54f40cfb4c47518a39a843daff90c20e1acbb37f89bbdde23c01b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}