{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "75700",
    "entityType": "User",
    "nonce": "0xd26ee81281587d8e03a0fa8c430d8804c0335edce5644b1ae757a91e506df46e",
    "signature": "0xf0e05e02478a950a258bbb0acd253b46eda4f7d0a8aba2bf7be3b100aab7125f0914eba6659c504d941d6215b074aac6fdd5357fe4cb921110964db7add734741c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}