{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x60778a0a5f7295ec2c29c81cf0750d20fb7fa8d4d6f7d68d6b0b6dbcffaa9003",
    "signature": "0xbd23c6afc4a8e45e50b704bbe4e943c089df49bfed29c15d2bd7bae6776db14821eca396d0aa290c4f4e884321f43d26ff78c679ac1d6591c89d200b713bb7b71c",
    "signer": "0x8494914dFD59D1237AD86046Aed4196f092108E6",
    "userId": "924491469"
  }
}