{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "192253",
    "entityType": "User",
    "nonce": "0x778b9af739c2c251e2608d5646c46666a578e0196caaf86b1dd267d785d0737d",
    "signature": "0x56fc414da3e1bc3ee6e06602b0e7c11485db1e51790d971a820d9a5bf2a0757800e77e89dbf197e15506cf96e8a06a924bb984c5da94fa8858f7831d8199a52c1c",
    "signer": "0x87FC3581f96D45b347BB39E15f25079950C5Cc27",
    "userId": "339826419"
  }
}