{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "108720",
    "entityType": "User",
    "nonce": "0x13b7137f5f5b4813a7ebd6ec8a51274a51dd397a218e6548156041f5058189b3",
    "signature": "0x2604ba3da07b12642a67d4d603dca6f11bbdecc50118f03c4a0090257dbfe1c517a13dfcdd4700701894bde8344a49761c0c32e3a1436842a96055223611fe2f1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}