{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0edf3967ddf260b71ddb16d22863182cb885621ea4ed819c2ec6872281515cb8",
    "signature": "0xb24abc65aedcf2835d83ffe9116810b52644adf3e82a134a021b8573b87424ba7891ad0aa6f2a1694c9e88423a62095538c739d17937500db9186693a9ddc0341b",
    "signer": "0xBa879F0BE8Df92016D51b444988147F03192297D",
    "userId": "168889346"
  }
}