{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0a805a71c03f904e13ce16847e9b4278bfc5330c140ef03ad5760e9494a25bda",
    "signature": "0x5f632c0a334d74eb7d861e1db38a8e86100a15b2d59d042ec784a569d8f85b29335b5b7ee567b7d4f7681528151e3220efe2e3eb847fb63021188a9685b7992f1b",
    "signer": "0x3626dae0590BB70062aE7BF2c3E74B8677Fb66CB",
    "userId": "154257245"
  }
}