{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4a31ec3cd8fba303b0ed27894bb4f2ad7da8d04e8df3d51d0128c81507ff396d",
    "signature": "0x0d00156a6ed71cd0d2b3c9b90827aecb2476a2ca73a31482ed2d4fa83d5d5e123d0f874d1b4c5a8b96eeddee95aad614c6e057cbe98834f32dd6aab5e31df0841c",
    "signer": "0xb26450121c10990B28BE7BC48daE105dDedE3B81",
    "userId": "983416336"
  }
}