{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "17301",
    "entityType": "User",
    "nonce": "0x0dc811488823ec2878da4a2439dde288e0a9978f3b5718048d98c7e52eb287ab",
    "signature": "0xca8a07ae5dd13f35a0fcc92e9c187ead6faa558e10b418f5e168b02554c9e21955fa08c0445c6ebf5e1bb1844be30bdeb2d11ccc7867a6aa1b9aa751c406677d1c",
    "signer": "0x7fdeEB144300AC6b1Be0E83d8f006b2D3140F73D",
    "userId": "325377357"
  }
}