{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd5d083acab0a7a4f457c48b0aceef829e60a7e04ce22c2c16783a0590668b3a1",
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    "signer": "0xB1DEa142b6c9E2e5781A6112858f1fA48322b2B5",
    "userId": "725523395"
  }
}