{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "919892467",
    "entityType": "User",
    "nonce": "0xa28b1920bec390ff3ddcb1ef191be0ed51455d63e4014739d9898c6ac9de5558",
    "signature": "0x9bde753e73bfcbfaab6b28c7d068c796792412e0d811b1b7686d9d0cb50267d42899d83e88caffbae9254934d1b7c4d0d9cd0d863e8f7feec8d20cc42164d4b61c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}