{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "173691",
    "entityType": "User",
    "nonce": "0xacfc4f182ae575fe1553cb47a9edde373b4a060328cfc620bfd2a5c1a34c1aff",
    "signature": "0x9bcb57b9e326c0fb9dafca3cce1e02768e8f243544e15b9aa3dd3f618d487d1a5f4410f5483a00c8373d51fdbf957213c87222b4ac61d0412b4d545984a5230e1c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}