{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "63877",
    "entityType": "User",
    "nonce": "0x8bbc300f1f6cd59c5689bdb3e570af60c27bd8a1472548be35de6094eb47a1fc",
    "signature": "0x4d342e3774affce9a5b7ad0c040ad29eef50917eb22227fd4fba75c5a9323217648f3e78de37cfa1c32a25ffce8b09d6c3c8f79139c6d452a502c46f640b760b1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}