{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "258307",
    "entityType": "User",
    "nonce": "0x66a97b17414df6db4ad03cc38764e2f90e20cc5278fcdc1314132c417006dc21",
    "signature": "0xaaf620e8534455732140092973534a1ccd22102b6fedb07a257462c901ccb6ec3cccdf3ff4d5b0209868b4a96a2c724abc84ab4407d12fcec87eccd1fbb033131c",
    "signer": "0x2D566E1DaC6fc148a694abe846B32e39B6584aa5",
    "userId": "890889753"
  }
}