{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "73485",
    "entityType": "User",
    "nonce": "0x843ab9a20aa6fcf54b79c7ec5fef17a439c4fb7e17b513f5bcffbe03ea25047e",
    "signature": "0x0b9b7b1249008a3adb4bebb91a3ea5eced247e1311172f6cd9a9cb5e58861a030004cea3b948b3177ed80df8654a7f9daf5fa7e72a0c77b8597f349f6b4d4c7a1c",
    "signer": "0x243f92B83d056f818b9b95664A8B7A86805A3E71",
    "userId": "111448"
  }
}