{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "151",
    "entityType": "User",
    "nonce": "0x2a713b7adeaa314aac97a241ebd076d57d6ed796fa7a1e25bed43268df66733a",
    "signature": "0x884da54449501dddb0e068b405e75e730c0dc171bd3716e7d7791e62ca8e02614bb590045a79a1b66a8f54acddb5343774b0127ba23d144630717710282ae63e1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}