{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "354001",
    "entityType": "User",
    "nonce": "0x8953097b4ad3792f5d23c699b2900c06287bcb4c7548a242767d026b3e8e3ef1",
    "signature": "0x98836d08224fb00763fe0dd942a1f6ca2914c030023ec8e786a45be3b495bd01146106402976c7428942bb4fd583fa15a98d12c1ea21c26d751fbd5a0401f4d51c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}