{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "881446128",
    "entityType": "User",
    "nonce": "0x365e96b77740db1a91b432363730c55cb4158f105bd266ebacc4d946c4e007ee",
    "signature": "0x676cddf57bda9995fb97fd7f1cbae598540caab1e6d093e0fff2ec14755930ef65fc0070e21f3233fa6376227b2bef670ba6d7a928d760df8b3c4bfc1f4bc15f1b",
    "signer": "0x4F8e40E75E675f5be20520c4cEA0CbD7bBb999B1",
    "userId": "991796067"
  }
}