{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "367647512",
    "entityType": "User",
    "nonce": "0x27fa5409def468854556dc26496aa5dc34a781bd53541bd4d515b08fbfa658f3",
    "signature": "0x370c2311b41290df41042dec8432365fb9e5fdab4638ab07367efab2ed4433a5409528acd4aee5fe9099a569c9c9550d4c356da5824e4d49933959c08ba330c31c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}