{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9670e7da482b4bd145745cee53f966a92905fa06959fbb668734e5aeae1d20ef",
    "signature": "0x26e6c5a4436ee8dff76cb018b7d5a2fc3e9df82cf96032f327f9e0c077deb4a34377e066c094aa9b81a978caabc18ea4f08e6550679999464a07d48b95543d851b",
    "signer": "0x1420466A3Ff3103932d418018ce8C48896631170",
    "userId": "967818253"
  }
}