{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "857798069",
    "entityType": "User",
    "nonce": "0xf53bf41bf465381e1978ed4d82807668f34836f72cf6b0d8850c1f16185ac798",
    "signature": "0xd9d333683213f5c58ca65f39f3fd67e5c6eec0d4de3bf1c62bc315cd5dc7310613a29d596fe27287a50c813c4fddb9b05cf22a4a0c39801ac657f9c9ef3c54791c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}