{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "881446128",
    "entityType": "User",
    "nonce": "0x7190ad3e016572ebae5003edb6e45e8fa2bf1813fdde661e5ce3f4f5212ddad1",
    "signature": "0x73a82b421bf151c31aba05422cee2331fec5a2beb561a3d3721d7e90b7b3eb0014da8d25c9a771003065fb6db1a03cedb3f41325c8e0cdb9b9941da00f8455361b",
    "signer": "0xdB791822A11f5aDc830669bdADa8121a4558D7A3",
    "userId": "347139808"
  }
}