{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "368275",
    "entityType": "User",
    "nonce": "0x57956649330683a0764ecaf0b10c7f2818079e3ebd78b0f550b77de0463e2756",
    "signature": "0xac287e0be677d8d4322616a0da85fe82485e16995fb0825ff422cdb2ad9053442a94939a466918848ffc9f93ec7d4dda5e698f05cfce65418b8650ade668185e1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}