{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "557210595",
    "entityType": "User",
    "nonce": "0x25ea1a22d0cabca473db5fa9de35ebcb3602221392898b744e127e72f6db850f",
    "signature": "0x7f0750acabc842b58e8e69e09e09a31405f3bc272e12e2be6ab25143bcebcb5343948704bd28f5296affe1fc602745a18d60ae25c3588974833ea30f8cce41781c",
    "signer": "0x3e16afFf69eC32202c1B755Ad919C7aA325B7aBE",
    "userId": "902811065"
  }
}