{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1408945",
    "entityType": "User",
    "nonce": "0x06b53dfa8098165865654800dd38fd953069640831d1fd8fc9ff57e5831ffaa3",
    "signature": "0xd462eeb07dd36cca1182dc2ae2531f246f4f117bcf72f73bd50b804bb88f710615c4891ce232b2f13559d287e17eff1852dc049bb2bdac22bd864ccbbf5b685f1c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}