{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "49485",
    "entityType": "User",
    "nonce": "0x6fdffe6a4ed865804868f8dd31c4e968efff39d8109a1004aec9eed7d540417d",
    "signature": "0xa8c6e2505a45af9b00bc5833400a243b2638624e85dfd0e3c2e542b410bd3bc1047cff95fe55dbfb1215e4a483545389e4a4ff23c6f70106f3aab1c488cce2041b",
    "signer": "0x7fdeEB144300AC6b1Be0E83d8f006b2D3140F73D",
    "userId": "325377357"
  }
}