{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7deef6301acc8f65dee040c9429bf4d11d57d0f60e40dffcd5d9d506f6f9e932",
    "signature": "0x1ba8c0eeb8161976e10398d903e34649a30ad7e93ef71acf921b2f219ef8fc9e18625c29beb3f72086de6d06b93f1944a608a02103b42c19264d4d327959a1821c",
    "signer": "0x6164d22C5753c6E9f1ec157dDef5A3C606E2f10D",
    "userId": "534038283"
  }
}