{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x26f6aeae4416def64436907fb1d728b4bcaf24727f451af71d10dc6d74eb2677",
    "signature": "0xd5e0c299b50d32736f112a3eead9d85bd0d52b9fe4722ed6c42c03c5d23b52aa0826c9e9f4127289313233d1435a05a34e835dba37e630ca7509f212a5622fd91c",
    "signer": "0x3c02EcdE7970B3CdBFEd337A0d38Bccf450e3Bc7",
    "userId": "679735855"
  }
}