{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "355997",
    "entityType": "User",
    "nonce": "0x4c15097f3f929e0ab5085dc348c86250929eb40e25bb1ab5e5b46f86f2281392",
    "signature": "0x3b9554c7fef978f814c9a9b80addc78705321eb3bbb83fc75a54c98fc360b7032531e31bcf5a78c98bc923451dc2254bc510e61bee9b80262bb05d562cbda23d1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}