{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "225324815",
    "entityType": "User",
    "nonce": "0x22f404c5c2a887a9fa51ff8e09464770861f8894514b5479572ca500f97c5cf9",
    "signature": "0xb24ce32b68ef648515e67fecbda56f96f43cf951d213acff7bdd7fb6973f172175a4aa7d6d2d886b2350402feb358e9b542567b09a47586c5c9f1c46289250ee1b",
    "signer": "0x79375D6d575fE2a038916001077f90CbAE12d4A9",
    "userId": "973873678"
  }
}