{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "7736",
    "entityType": "User",
    "nonce": "0x1de53a43d5ab45bf43283fe3d0694aae15fc9f70f28bea0c90a427d40c2d90ab",
    "signature": "0x99ab08acd2c9bcdc82a03eec456204bf3cde82faa1aa9d5aff5b831a8ae84a561d3ba53889c5727beb3552721065c6adf53b170e0cdbe9b0a9009bbfa5a18e4e1b",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}