{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "7498",
    "entityType": "User",
    "nonce": "0xa5a6fbc6dfc7625dc986db785633044dd6e8f2b31186831365faa790acb79105",
    "signature": "0x6728e5238b1eb3b71c75a52762358dca58c8a0361c1bb579b02ccccc1df690317500770fa9a0e6f41cdab809137d5129375e75eed0b4859d181c9670da1538611b",
    "signer": "0x3256Bd2D0B1984E7df4FA525017aD9bA48470760",
    "userId": "51"
  }
}