{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16460",
    "entityType": "User",
    "nonce": "0xd4c0318b9837b5c5b1a00de5cdad20198da458bb1d9a80d7ad4faea9dae0b738",
    "signature": "0xee6ebc9c1bb7488b1e4a1a8025f3a4bc9274075fdfa9211a56069e22c6b02eeb334cd316ff15af8796a9889db6c8960a15f493090cd225fcf7f43b7a619d1db61b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}