{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "255996181",
    "entityType": "User",
    "nonce": "0x848178fe7148633c4e3e76580f461735138452e0605446eeac379485d1e5b1ae",
    "signature": "0x33a940bef624c348dde97efcf282c4e25b5b7cdce5209b46c2d99d7834c8c2526d10f5869f87dd1501619a20f0fa367e398b767ece3fece8d5b481c8fe0be8ee1b",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}