{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "914",
    "entityType": "User",
    "nonce": "0x50ee96f0d4c7137d2696c40ed8f43766668adf78422acdd4ba57e242a0f711b2",
    "signature": "0xb573af5ac10e0d7c16eff2b480a252647e477752243eb0fbedb9c04df70735320585b2c5e11efb90d405663758a2bed000e553cdaccc8ee6e0fbd52fa56ed51a1c",
    "signer": "0x243f92B83d056f818b9b95664A8B7A86805A3E71",
    "userId": "111448"
  }
}