{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1856608",
    "entityType": "User",
    "nonce": "0xa0aadabc28a19e6446d7c4778b7557657857cd5b21c90d5b2b14bc9d88c7b6bb",
    "signature": "0x43b49e47d01a021f93998f57d478dcce36603cd1b13918952eb934abd7d30018703d0618fb0fddad95189584e4609b0ef1a78a54103af2f25a00a33d8b8b714e1b",
    "signer": "0x7bF90aDB0D4f329e1dA9BB5123768023eD007adf",
    "userId": "111728084"
  }
}