{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1791539",
    "entityType": "User",
    "nonce": "0x3e9657249086186e23038764e629ad4de6b088c5c29ce7252932393a6b993616",
    "signature": "0x879a99fc7ee43e135202535b3c9da8a8c30ee0a737ffdcbf0957df782b5977ad601b8339a0708646f446472b2cc33713ffe025c1fc37bca568098bd04a19eed41b",
    "signer": "0x40E8E224E8F8a9f835e4dc8851Da72DCEd75986F",
    "userId": "504092010"
  }
}