{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50424",
    "entityType": "User",
    "nonce": "0xa7842f32cf8b8c5a072046e15a0eca6486660b9a6446206f8bf097e2c138d7a3",
    "signature": "0x0ec8bd7007de17d8e99d7d150ad69ffe18f02de05c88995a234190da2a1b634a02717f4995254cbc79829fb4a178bb1e518b5e7c2b79b739a1824a68e38387951c",
    "signer": "0x975699e892A0a2f2f16d2b8950Ac7C882B8EF555",
    "userId": "544952248"
  }
}