{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "42216",
    "entityType": "User",
    "nonce": "0x27964508226fe79f37717849a45f7d4d4f9556c3623eef00a6184f4af6cef017",
    "signature": "0xa141459ef8edc6c813afaabd40eb62ff045296f4c9a003c407217244833ee8d835ab647f059f2161662725e6d80e0d99df605cc81e46fd4f94adcd6e01d5fcfa1b",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}