{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "45062",
    "entityType": "User",
    "nonce": "0x73e4dfba087da10b4897d18f71a596a4d3307bd32459fc2694b791c235a506a9",
    "signature": "0x67096497b9899a48b10953c891e30d9dff9da21edd49d99435ce3edb88f5bb9469624efcd4b119c4a90c19dc82ed491e1a7d0bfcb44794ac47b32a8cd006d9c11b",
    "signer": "0x4cFd9635b74edd6514FBb781B9C920be24A36AfA",
    "userId": "376830101"
  }
}