{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "12410",
    "entityType": "User",
    "nonce": "0x91bf4221ccf58e0a0d49561c969f1e43aa713402c6a8cf0cee16059ce95b542d",
    "signature": "0x105c8f8f03991c04f42031db4816d629722a081a55993c31235cd6c4993af18c0308d14e4a84a746d51fbd18b6332ad46d058f9671e2ec4f6bf2974548ad164a1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}