{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "511280302",
    "entityType": "User",
    "nonce": "0x5f7b303bab5409072d00af1db3a03aafbdfc4cbe641a19800ba21e74b787480b",
    "signature": "0x8e70c671faf9fe1f6e223b23f1fac3db2363f3359943397cfbb404f2f648fd8a76eb6b01f58eb156e1c15c2da2328b2e47d927847b5b8316f1c29558810ade161b",
    "signer": "0x2ACda02e37Db2DC08f82aEFAB268F0610974bb3c",
    "userId": "416239376"
  }
}