{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "43430",
    "entityType": "User",
    "nonce": "0x4319ee7b5b9e075577fe800eb32522703834e50fdb32a768b5d2cf758a8e098b",
    "signature": "0x2814e6c7fbe58aff08918227e2ac2323d4b8e5a8e4c671004db0fb23fd9f63780da42774d51e2bed7a9b1d3aa1246c62a569e0e6981a79725f75117eb90c02781c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}