{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "578268836",
    "entityType": "User",
    "nonce": "0x1a057b26765a2c043033e8a8d079391da8aee01678d6fd25144033dcf1d94ee3",
    "signature": "0xbb0bef1d391546ec3e367812c16eacaf5e726cb13620cabd37c21af381c26fe44be9388cdd67f49ecb5bbc3175b308070dfe0fcb712644c3b7ac0a98a90635ec1c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}