{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1780850",
    "entityType": "User",
    "nonce": "0x1c873290b2b979bfda01c65d5249396438b4222ab9ca3660dc13cc35f9c37e49",
    "signature": "0xa51ab3b18a76feade045f284dafa5551222b76a9f84791777e44f6a16707762a61f734f026b9451e7da6c35dbf7c561f8fc5f51c378e09267f35f004661240ad1c",
    "signer": "0xdEc12eC3F7972dB51907501aF18eb17FBa37a413",
    "userId": "211416595"
  }
}