{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa5f5078b5d0ee499079e09358d15f05b4f21f5e3d5e614a9fc1b1ded8d69803f",
    "signature": "0xaf9763750745b22e2e55897196540747ba88167bbd4d82fbd2f3442a0f6bd849045ec59c2c85b366b0b731b550227614f345efd3332b195379beecffc12bcdb81b",
    "signer": "0x61feaa8f97d4d2ab57FC23Ed2e73f2ec85bA53d9",
    "userId": "308489556"
  }
}