{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "458785967",
    "entityType": "User",
    "nonce": "0xa5280354092c1d159b89619227bd2988f3f22c8d821ab189b4c9365086685b25",
    "signature": "0xd8de51417624a3243fd5680b39e8b6d069c5767c4dddc46685ce9abb488a4ad809b4c1278b0c168f5c502083b35f35d0f4bdc4ba610670addc5e669f83342b2b1b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}