{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "129445",
    "entityType": "User",
    "nonce": "0x8e66bc5e74107dcccd2f657d950288df0a9463eb0bfd6025f9958a75ec88feb8",
    "signature": "0xb577af6cee23325de737fc9b408d4c7ab6ac689c9515313e3b0377d7b527dd4378c31c2a67961e14540e34595c166cfb8dcb8e4481da1af7387a68b5682059361c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}