{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "702811",
    "entityType": "User",
    "nonce": "0xf4ad2b630b963f202fb0d8a7a49b9a1106f773a47046f16ab0eb985bf8d241dc",
    "signature": "0xfe3da84cac0a22ccfbb5c7c0a0214aad6f00e1b7d4aef76993f23edd35a83b2f225468c6fb4bba56ddcd3172e22722a1002628fab643e66c042b1446ca32bdf01b",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}