{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "295399",
    "entityType": "User",
    "nonce": "0xa8c0ede2766134c3b5e975f8f5573d7fd5896ba01d77e434191d53cd9d551a4e",
    "signature": "0x0ab48f9291b6dff0e11887da16d6d83fd35e508d9eb6f0f51d8d9fab2ecf67cd04065a85c95356e157175f0d94eaca2fccc4e2e16a4380664bc4663cd92ec2961b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}