{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6fdd656101fb11c3b3739f1c030de4a1303e38d28b3c8c6360784188a31ad88c",
    "signature": "0xf1071af3070e80a000ad21826926a5bbe4e97c3e00c6b05c1c72b2412bc48cd7704bad2dfe97d29d607f625ee5733dd572866363e295bd7e4af75c838ddfd52e1c",
    "signer": "0x7bae2bFbA4Dc339400A10B76D2C6373664e15354",
    "userId": "491386326"
  }
}