{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "315838",
    "entityType": "User",
    "nonce": "0xe1fecaba2bac52bb2e1c0685634916981e1d4d74d6c52a6df201ba4b80be5a32",
    "signature": "0xa01f53a7f8c98fa9547e2f977e34d64ae57cdc6d22bf1e46bcbead6cecf1145f09f46a6adbacb4e6ad27747c00bcb1cde08d8ffc22eadd718a7001aca79829b41c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}