{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "951616224",
    "entityType": "User",
    "nonce": "0x5c43bd7f84484f0ae0ec21a2ba769674775b6949f46e5d0a772926292b1f3f71",
    "signature": "0x6c06476da913aafd4d861fe7e98ca6a75daa2767ba28309bbf3f19e04f7ceb3d05cd124943f1e9bb330e702e7e49f465bcd17ac22fba88cf8fabac74c28f4ddd1b",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}