{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "322751",
    "entityType": "User",
    "nonce": "0x9b0c2ba3d8ac13c15a9487333e13e452a98f454a604df7bfae4a68c5dad63070",
    "signature": "0x0438bcf21fba24af0072c08c8be31db1db066c60cce2b767aad9f899135b838e7f85b0eb7cb21983e42437dc9af9c9f19ce980ae3790c016e6c1b016405753aa1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}