{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "614212580",
    "entityType": "User",
    "nonce": "0x2ef2d81849b0f00e2cdb704a805353429d1edda477e921f59b2c4397e7c2acb3",
    "signature": "0x7a773e102c37b5f3932fa7edcbfdc38cf89827ce7c34cf6e7f82dd12a4d5f7e4457bc49a7e000a1df67b1f0adfd806c001c1e23d583885fa320b08353441c5621c",
    "signer": "0x12302E88Cf971407d5bdd167b1AA2664556D3385",
    "userId": "68176371"
  }
}