{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "78418",
    "entityType": "User",
    "nonce": "0xbfad2dbe15cf1a36dba7a1f2a7bad3482aabc8819aab3130aa5edc0679ad46b0",
    "signature": "0x482b199d4a613f3d01194c376c8b1bd5e29d280775e9f0bfa128fe6509f0e4ca5e58aa8c59bf4e358001beed5f2c1e22290540cbc34f6fb75393da0cbd72e3ff1c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}