{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "12462",
    "entityType": "User",
    "nonce": "0xdf12ef0e6d5f0e1f1b2bc34c0d9b69414120ba83cac5478eec4713f9f3ec07d8",
    "signature": "0x3fad06efe6de623632dbd7cf4c39695c79503dabf0bca3bdf75086adf50b72ae429c60a8200e393ce004fd867915d913f86870f17ccdb9660d7d3dbd737a83fa1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}