{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x337ee891af93e2236d080ecad8b57b9bd9f79179b30c1030f79f2a19bf5ad1d5",
    "signature": "0x5eb785d09c121d996ec5f3fcf6587726ce801b8c9cd8ae925e5700d0e2a9ef5136255d0ab49df5b2184cabfe5bbc8e3fe231542a92b17e577ec35afec2f463f71b",
    "signer": "0x4D386A3060c2b887771faBC7ab3462336663fAF3",
    "userId": "271191164"
  }
}