{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "166428182",
    "entityType": "User",
    "nonce": "0x6a1ab11e95f30fec77c9a28722e47e9adf8c722d7de21014d2743d64768736e8",
    "signature": "0x422f31c2b7ed5668a1726fd70640d0dbf0230eaab6c143973ee895e304ede5b71f8933bda3d8993356313793c0dea34a1ed6c26c384557de9b33d1fa3c086bc61b",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}